multi select event colours to track/channel colours?

Never solved this one …

how can selected event colours be reflected automatically to channel colours?

so I select a bunch of drum events for example - colour them - then see selected colour in project window as track colour?

Tried all sorts of modifiers & hunted through prefs - but nothing seems to work.

Got some enormous mixes to get through & colouring each track separately is a pain.

with thanks,