Microchip provides a spreadsheet which lists the Attiny24a as supporting 1 - 4 channels using the Qtouch lib. for non PTC devices.
When I start the Qtouch project builder I can not see the device on the list, Attiny44 does show up though. Is it OK to continue with the 44?
In addition, after creating the project I get an error that touch_api.h was not found. I've searched for it, doesn't seem like it exists.