Possibility to set urgency of clients/tags with mmsg

[slckr]

It would be great to have a way to set the urgency of clients and/or tags with mmsg, so we could incorporate this capability into scripts that respond to events.

For example, I’m using this feature in my mako configuration on Sway to suppress (hide) OSD notifications while still being aware of clients that need attention in a standardized manner. In my setup, the workspace button that contains an urgent client turns red in waybar.

I found out how to check a client’s urgency with mmsg -g -t, but I haven’t found a way to set it.

For reference, here’s the related Sway implementation: swaywm/sway#2258

Thanks for creating such an awesome WM!