To adjust CW sidetone for yaesu transceivers is easy since it has adjustable value on its function mode.
You can adjust to your preferrable volume by tuning the dial knob to the left or right.
Elecraft has hidden function for this setting, you need to press the 3 function knob. just read the manual if you don’t know.
I have tried icom ic706mk2g, the way to adjust cw sidetone for this transceiver is different. You need to turn the side yellow coloured screw on right side of that radio.
Speech processor gain also located beside the cw tone volume screw. some high end transceivers has their dedicated knob for cw sidetone adjustment.