if you have the GridFieldApplyToMultipleRows component on more then one relation tab at the same time, you are able to select checkboxes on all tabs that will be posted at the same time.
The component will use all ID's from all tabs to select the current tabs records....
if you have the GridFieldApplyToMultipleRows component on more then one relation tab at the same time, you are able to select checkboxes on all tabs that will be posted at the same time.
The component will use all ID's from all tabs to select the current tabs records....