Often, I will be controlling either Ground or Tower at TS1’s busiest airports, and I’ve found it quite annoying that often you don’t know what the other controllers’ decisions and active runways are. IFATC has the ability to communicate effectively through Slack, but those in TS1 don’t. And most probably don’t use IFC either.
So what I’m thinking is something along the lines of the button-style communication we already use for aircraft, but instead for ATC. e.g. A Tower Controller can press a button saying “Active runways are…”, select his runways, and send that message to the Ground Controller who will be able to direct planes to those runways.