Boss MIDI Help

[jguzzo56]

I’m trying to have my ES-8 control the TAP/CTL switch on my RV-500 for the momentary freeze effect. I cannot for the life of me figure out how to do it. I’ve tried the CC number for every assign on the RV, but nothing works. I’ve tried both the MIDI patch setting and an assign setting. I can change presets and turn on and off effects fine, but the TAP/CTL button doesn’t seem to be able to be controlled. The tap button on my DD-500 works fine with the ES-8, so I’m not sure what I’m missing. Any ideas?