Often times developers will place down annotations with "TODO", which is a reminder for them to come back later and finish implementing something. Currently, creating these annotations in Studio Pro does nothing and can easily be lost. The only way to find them is to do a search for "TODO" with match case enabled, which works well assuming that every developer actually typed out TODO in the annotation. Instead, there should be a flag that can be set on the annotation itself that marks it as a TODO reminder, and that can be individually toggled just the same as Errors, Deprecations and Warnings can.
Great feature to build as Mendix Studio Pro extension!
The docs even provide an sample :D