(The title of this post might be sketchy as I don't know the actual word and English not my first language is.)
I have got this idea where Inventor could get rid off the 'Edit Property Fields' dialog when wanting to edit the text values of Property Fields in a title block. In other words, add the option to directly edit the values without having to open a screen to edit them.
A nice feature would be the text value box appearing when hovering your mouse cursor over its area. By doing so you could select the text box and fill it just like you usually do with the 'Edit Propert Fields' dialog.