Users are currently not able to dynamically filter the list of note action types (by typing) due to an ongoing issue on Bullhorn's end. They are aware of this issue, and their engineering team is currently working on a fix.
In the meantime, please utilize the "Ctrl+F" feature when adding a note, as this will also provide similar functionality.
As soon as we have further information regarding resolution, and update will be provided to the network.
Thanks,
TL IT