Can I not somehow set the tab order so that it goes through my main form AND my subforms without having to go to the mouse to go to a subform?
I can verify this is still an issue. There is no built-in way to specify tab order that continues within a subform. It’s a shame. My guess is that there is a way to do it with a macro. For something so basic the tab order should definitely be able to cross the boundaries of forms and subforms since the user can’t know the underlying structure, they just want to keep hitting tab. When the tab cycle hits the last main form element it goes to the next record instead of subform fields. 
Hi @LibreLyrae,
I’m not sure how to set the tab order here. Any chance that you’ve found the answer to this question independently?
Perhaps this isn’t possible, in which case…please file an enhancement bug and provide as much information about the desired interface for setting tab order between (sub)forms. Don’t forget to mark your bug as an ‘enhancement’. The QA team will be happy to help you triage your feature request in the bugtracker.
Please post a link to any bugs you file in a comment below using the format “fdo#123456”.
Thanks!