Having the two grids in the same view when using a small mobile device like a cellphone, makes the form or view that is using TCG to be very tall. It would be great to change TCG format so it has a better UX in those devices:
Instead of showing both grids it should only show the grid with the selected items.
The button for adding items should open a dialog with the grid with the available items
Upon selection of the items in the grid within the dialog a select button should be enabled
By pressing the select button should move the selected items to the underlying grid and close the dialog
Having the two grids in the same view when using a small mobile device like a cellphone, makes the form or view that is using TCG to be very tall. It would be great to change TCG format so it has a better UX in those devices: