Feature Request: Add auto-filtering/highlighting of Technique IDs based on Tactic IDs

[frloudet]

When working on the flow chart and creating an "action", the Tactic IDs and Technique IDs are all available through an autocomplete drop down menu which is great.

As an iteration over this feature, it would be quite useful to add an auto-filtering/highlighting feature: When a Tactic ID is selected, only the relevant Technique IDs would be shown (or highlighted, leaving the others visible as well) in the related Technique IDs drop down values.

Thanks and well done for this attack flow app!

[mehaase]

Great idea! Tagging @mikecarenzo for awareness.