Notes (Hotspot) buttons are pretty dull.
The option to use an icon/image could improve the user experience.
The support for 'Notes client only' would already be an improvement.
I really like that the label for an Action can now be computed with a formula. How about we extend this to hotspot buttons, controlled access section title text, table tabs, etc.
When you put a button above e.g. a RichText field, to perform a simple action as 'EditInsertFileAttachment', the user would like it to insert the attachment where the cursor is at that moment.
Currenty when clicking a button, this button get's the focus, and you don't know where the cursor/focus ...