Workaround
Have Boolean field in entity and add custom content in DataGrid2 to map Boolean filed to checkbox. On button click call microflow / nanoflow and filter the selected records.
You can find the new release (March 29, 2023) of the Data Widgets that delivers a new "Selection" property to make items in the grid selectable (Datagrid and Gallery widgets). Check here: https://marketplace.mendix.com/link/component/116540You can find the new release (March 29, 2023) of the Data Widgets that delivers a new "Selection" property to make items in the grid selectable (Datagrid and Gallery widgets). Check here: https://marketplace.mendix.com/link/component/116540