Iss 828 Fieldwork section rework

src/.vitepress/sidebar/en.js

@@ -112,24 +112,36 @@ export default {
         ] },
       ] },
     {
-      text: 'Fieldwork',   // required
+      text: 'Fieldwork with Mergin Maps Mobile App',   // required
       collapsed: true,
       items: [
         { text: 'Mergin Maps Mobile App Interface', link: '/field/mobile-app-ui/' },
-        { text: 'Offline Use of Mergin Maps Mobile App', link: '/field/offline-use/' },
-        { text: 'External GPS', link: '/field/external_gps/' },
-        { text: 'GPS Accuracy', link: '/field/gps_accuracy/' },
+        { text: 'Add, Edit, Delete Features',
+        collapsed: true,
+        items: [
+        { text: 'Adding Features', link: '/field/mobile-features/' },
+        { text: 'Editing Features', link: '/field/editing/' },
+        { text: 'Deleting Features', link: '/field/deleting/' },
+        { text: 'Editing Options', link: '/field/reuse-last-values/' },
+        ]
+        },
+        { text: 'Layers and Features', link: '/field/layers/' },
         { text: 'Position Tracking', link: '/field/tracking/' },
-        { text: 'Synchronisation in Mergin Maps Mobile App', link: '/field/autosync/' },
-        { text: 'Measurement Tools', link: '/field/measure/' },
-        { text: 'Layers in Mergin Maps Mobile App', link: '/field/layers/' },
         { text: 'Filtering', link: '/field/filtering/' },
         { text: 'Map Sketching', link: '/field/map-sketching/' },
         { text: 'Photo Sketching', link: '/field/photo-sketching/' },
-        { text: 'How to Add, Edit, Delete Features', link: '/field/mobile-features/' },
-        { text: 'How to Reuse Last Entered Values', link: '/field/reuse-last-values/' },
+        { text: 'Measurement Tools', link: '/field/measure/' },
+        { text: 'Positioning and GPS Configuration',
+        collapsed: true,
+        items: [
+        { text: 'Field Survey Setup', link: '/field/survey-setup/' },
+        { text: 'GPS Accuracy', link: '/field/gps_accuracy/' },
+        { text: 'External GPS Connection', link: '/field/external_gps/' },
         { text: 'How to Stake Out Points', link: '/field/stake-out/' },
-        { text: 'How to Fix a Broken Project', link: '/field/broken-project/' }
+        ]
+        },  
+        { text: 'Offline Use', link: '/field/offline-use/' },
+        { text: 'Synchronisation in the Mobile App', link: '/field/autosync/' },
       ] },
     {
       text: 'For Developers',   // required
@@ -177,7 +189,7 @@ export default {
         collapsed:true,
         items: [
            { text: 'Support and Troubleshooting', link: '/misc/troubleshoot/' },
-           { text: 'Project fails to sync', link: '/misc/troubleshoot/not_syncing/' },
+           { text: 'Project fails to sync', link: '/misc/troubleshoot/not_syncing/' }
         ] },
         { text: 'Write Documentation', link: '/misc/write-docs/' }
       ]

src/field/broken-project/index.md

@@ -1,13 +1,26 @@
 ---
+prev:
+  text: 'Support and Troubleshooting'
+  link: '../../misc/troubleshoot/'
+
+next:
+  text: 'Project fails to sync'
+  link: '../misc/troubleshoot/not_syncing/'
+
 description: Do you get an error message when trying to open a project or a form in Mergin Maps mobile app? Here is how to resolve some of these issues.
 ---
 
-# How to Fix a Broken Project
+# The Mobile App Fails to Save Changes or Fails to Read Project
 [[toc]]
 
-Do you get an error message when trying to open a project or a form in <MobileAppName />? There can be multiple reasons for what went wrong. Here we will try to guide you through some cases you may encounter. 
+:::danger Outdated content
+These issues are related to older versions of the <MobileAppNameShort /> and <QGIS link="" text="QGIS" /> so the content on this page may display outdated versions of <MainPlatformName /> products.
+
+If you are using <MobileAppName /> version 2.5.0 and higher and QGIS version 3.34.0 and higher, you should not encounter these issues.
+:::
 
-Note that these issues may be related to an older version of the <MobileAppNameShort /> or <QGIS link="" text="QGIS" /> so the content on this page may display outdated versions of <MainPlatformName /> products.
+
+Do you get an error message when trying to open a project or a form in <MobileAppName />? There can be multiple reasons for what went wrong. Here we will try to guide you through some cases you may encounter. 
 
 :::tip Need more help with your issue?
 The [Troubleshoot](../../misc/troubleshoot/) page has general troubleshooting tips and describes [support options](../../misc/troubleshoot/#support) that include commercial support, support for subscribed clients or community support.

src/field/deleting/index.md

@@ -0,0 +1,32 @@
+---
+description: With Mergin Maps mobile app, you can capture and edit points, lines, polygons and non-spatial features in the field using comprehensive editing tools.
+outline: deep
+---
+
+# Deleting Features
+
+[[toc]]
+
+## Deleting features
+
+1. Tap on a feature on the map or find it through [**Layers**](../../field/layers/)
+2. Use the **Edit** button to open the attributes form
+3. Tap the **Delete** button and confirm the deletion
+
+After confirming that you want to delete the feature, it will be removed from the layer.
+
+![Delete feature in Mergin Maps mobile app](./mobile-delete-feature.jpg "Delete feature in Mergin Maps mobile app")
+
+## Multi-features deleting
+Multiple features can be deleted at once:
+
+1. Select one of the features you want to delete and use the **Select more** button.
+
+   Depending on your mobile device, you may need to use a button next to **Edit** to display this option.
+
+2. Select all features that should be deleted on the map
+
+3. Use the **Delete** button to delete all selected features at once
+
+![Delete multiple features in Mergin Maps mobile app](./mobile-delete-bulk.webp "Delete multiple features in Mergin Maps mobile app")
+

src/field/editing/index.md

@@ -0,0 +1,100 @@
+---
+description: With Mergin Maps mobile app, you can capture and edit points, lines, polygons and non-spatial features in the field using comprehensive editing tools.
+outline: deep
+---
+
+# Editing Features
+
+[[toc]]
+
+The <MobileAppNameShort />  can be used to add, edit and delete features in the field by users with [writer or editor permission](../../manage/permissions/) to the <MainPlatformName /> project. 
+
+Until the project is synchronised to <MainPlatformNameLink />, all changes are local (stored only on your mobile device). Changes can be [synchronised](../autosync/) manually or automatically.
+
+## Editing features
+Tap a feature on the map or *tap and hold* to select one from multiple overlaying features to display the form.
+
+Use the **Edit** button to open the attributes form for editing. To edit the geometry of a feature, tap the **Edit geometry** button.
+
+Once you are finished with your changes, use the **Save** :heavy_check_mark: button.
+
+![Edit attributes and geometry in Mergin Maps mobile app](./mobile-edit-features.jpg "Edit attributes and geometry")
+
+Features can also be browsed, edited and deleted through the [Layers](../layers/) panel. Layers that are set as [read-only](../../gis/enable_digitising/) in the project properties cannot be edited.
+- Tap the **Layers** button in the bottom navigation panel and select a layer to see the list of features it contains. 
+- Select a feature from the list in the **Layers** panel to display its form and edit the values or geometry. 
+
+![Layers in Mergin Maps mobile app](./mobile-layers-browse-features.jpg "Layers in Mergin Maps mobile app")
+
+### Editing geometry
+There are multiple options of editing the geometry of features depending on the geometry type of the survey layer: editing the vertices, [redrawing](#redraw-geometry) or [splitting](#split-geometry-of-lines-or-areas) features.
+
+To edit geometry of a point feature simply adjust the location in the same manner as when [adding new features](#capture-points).
+
+Layers with MultiPoint, Line, MultiLine, Polygon and MultiPolygon geometries offer more options. Tap a feature, press the **Edit** button and then use **Edit geometry**. The vertices of the feature will be highlighted. You can move, **Release** or **Remove** them as needed. Tap the **Record** button to save the modified geometry.
+
+![Editing line geometry in Mergin Maps mobile app](./mobile-edit-lines.jpg "Editing line geometry in Mergin Maps mobile app")
+
+### Adding part of multipart geometry
+Parts can be added to features from survey layers with multipart geometry type (MultiPoint, MultiLine, MultiPolygon) while editing geometry.
+
+Tap the **More option** button while editing geometry and use the **Add part** option.
+
+![Adding geometry part in Mergin Maps mobile app](./mobile-add-part.webp "Adding geometry part in Mergin Maps mobile app")
+
+Capture the part by using the editing tools and **Record** your changes. The part is added to the geometry of the feature.
+
+![Adding geometry part in Mergin Maps mobile app](./mobile-added-part.webp "Adding geometry part in Mergin Maps mobile app")
+
+### Using streaming mode to edit geometry
+The [streaming mode](#streaming-mode) can be also used while editing features with compatible geometry type. Tap the **More option** button and use the **Streaming mode**. 
+
+![Editing line geometry streaming](./mobile-edit-streaming.jpg "Editing line geometry streaming")
+
+### Redraw geometry
+The existing geometry of MultiPoint, Line, MultiLine, Polygon and MultiPolygon geometry can also be redrawn.
+
+Tap the **More option** button and select the **Redraw geometry** option. 
+
+Capture the new geometry of the feature using the editing tools or streaming and use the **Record** button to save your changes.
+
+![Redrawing geometry of a line feature](./mobile-redraw-features.jpg "Redrawing geometry of a line feature")
+
+### Split geometry of lines or areas
+Lines and areas can be split into two or more new features that will keep the same attributes as the original feature.
+
+Tap the **More option** button and select the **Split geometry** option. Create the splitting line by using the **Add point** button. 
+
+When finished, tap **Done**.
+![Edit button in Mergin Maps mobile app](./mobile-split-features.jpg "Edit button in Mergin Maps mobile app")
+
+In this case, two individual features are created. Both have the same attributes, except for `Feature ID` (one feature keeps the original id, the other gets a new one).
+![Geometry split successfully into two features](./mobile-split-features-complete.jpg "Geometry split successfully into two features")
+
+## Multi-features editing
+
+Attributes of multiple features from the same layer can be edited at once.
+![Multi-feature editing in Mergin Maps mobile app](./mobile-multi-feature-editing.gif "Multi-feature editing in Mergin Maps mobile app")
+
+1. Tap on a feature on the map and select the **Select more** option.
+
+   Depending on your mobile device, you may need to use a button next to **Edit** to display this option.
+   ![Select more features button in Mergin Maps mobile app](./mobile-select-more.webp "Select more features button in Mergin Maps mobile app" )
+
+2. Select all features that should be edited. 
+
+3. In the attributes form, enter the new values of attributes and **Save**.
+
+   All selected features have been modified at once.
+
+## Edit non-spatial features
+Non-spatial features, such as tables for [value relations](../../layer/value-select/#value-relation), can also be added or edited in the <MobileAppNameShort />.
+
+1. Tap the **Layers** button and select the layer you want to edit
+   ![Mergin Maps mobile app Layers panel](./mobile-non-spatial-layers.jpg "Mergin Maps mobile app Layers panel")
+
+2. Tap an existing feature to change it or tap the **Add feature** button to create a new feature
+   ![Editing non-spatial features in Mergin Maps mobile app](./mobile-edit-non-spatial-layers.jpg "Editing non-spatial features in Mergin Maps mobile app")
+
+3. Fill in the attributes and **Save** :heavy_check_mark: the changes
+