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Editing sessions

The session editor can be enabled from the sidepanel. Once enabled, clicking on a widget will make it the selected widget.

Root panel

The root panel can be selected by clicking on the "Root" button in the sidepanel.

Context menu

Right clicking / long touch on a widget or on a tab will also display a context menu providing useful utilities :

  • Edit parent: select widget's parent for edition
  • Copy: copy widget's data
  • Cut: copy widget's data and delete selected widget
  • Wrap in: wrap the widget in a new container
  • Paste: paste copied widget in selected container
  • Paste: paste the widget as is
  • ID + 1 : increments the id of the copied widget (and all its children) before pasting
  • Clone : create a clone widget targetting the copied widget
  • Add widget: create a new widget in selected container
  • Add tab: create a new tab in selected container
  • Delete: delete selected tab or widget


Current session can be exported as a .json file. When overwriting a session file that's currently is use by other clients, they will reload it automatically.


Loading a session file doesn't affect other clients.


By default, widget resizing / dragging snaps to a 10 pixel wide grid. Its width can be customized in the editor (when it's enabled). Setting its width to 1 will disable it. Note that the grid doesn't affect manual setting of a widget's size / position.


Selected widget's properties are displayed and can be modified in the sidepanel. The widgets reference section lists the available properties for each widget type. Property fields are all multiline (press shift + enter for new line).

Properties are written in JSON, with some flexibility brought by the JSON5 format. For example, doubles quotes around object keys are not mandatory. All input will be converted to standard JSON.

Widget resizing / dragging

Selected widget can be resized using its south, south-east and east handles. It can be dragged with its north-west handle. Using this feature will convert position and size values to plain number values, thus breaking previously set percent or inherited values.

Bulk editing

When holding the ctrl key (or command on Mac), multiple widgets can be selected for edition:

  • they must share the same parent widget
  • context-menu actions and properties changes apply to all selected widgets
  • resizing / dragging will affect all selected widgets, relatively to the first selected widget