Hi, is there a value I can paste in to property tab builder that will trigger a specific macro? 

Example below, if I select 'PLATE' then click Apply, I want it to trigger a macro that auto-fills my custom property (I already have the macros, just need some way to trigger them other than hot-keys or creating macro buttons). 

Hoping this can be done as easy as pasting some code line in 'value' column and a path to the macro file. 

Thanks