When using multigrids with datatables theme, the "Add" button simply disappears whenever:
1. The "Update and go back to list" button is clicked in the popup edit menu.
2. The "Save changes" button is clicked in the popup edit menu.
3. The "Refresh" button is clicked in the main table.
This doesn't happen with themes other than datatables so I'm guessing that it has got something to do with it. I want to go and work out on the issue but I don't know where to start looking. Can anyone point me in the right direction towards resolving this issue? Thanks