I just released LMpicker, a Maya tool to select your character controls with simple and intuitive mouse gestures. I have been developing it and using it at work for several years. It can be used with any rig and it is very quick and easy to connect it to your rig. Please, have a look at the video and let me know what you think.
https://luismiguelherrera.com/lmpicker
Thank you very much
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Luismi