Tags

Currently the use of # to assign a Tag in process text provides a select list of all Tags which includes System, LEAN, etc.
The list presented can be very large and daunting to Users.
Can an improvement be introduced to either:
1. introduce the ability to filter the Tags List presented by Tag Type e.g. System, LEAN, etc first then have the ability to select the Tag required in the text, or
2. Instead of using # for all Tags introduce the use of another special character for each Tag Type e.g. # for Systems, $ for LEAN, etc.
Thanks very much.