I’ve just released AbleSet 2.5.0-beta.7 which includes the ability to use a MIDI controller or OSC commands to mute or solo your click tracks. This isn’t available in the web UI yet, but in the meantime, you could use TouchOSC to build a custom control surface with these features.
Here’s a demo project with buttons to solo, unsolo, and toggle the solo state of all click tracks: Click Track Solo.tosc (942 Bytes)
After opening this project on your computer, phone, or tablet, just go to the connection settings and enter the IP of the computer running AbleSet, and set the send port to 39051:
I hope this helps! Let me know if you have any further questions or feedback 