Not sure if you know this, but you're not pressing 4 keys at once. The ctrl + b part is the prefix sequence to let tmux know you want to send it commands. The order of key presses would be:
1) press ctrl + b
2) release
3) press shift + 7
You may already know this, and the RSI concerns still stand (I'm not sure what all goes into RSI risks), but wanted to clarify if the concern is over pressing 4 keys at the same time that are all over the keyboard.
1) press ctrl + b
2) release
3) press shift + 7
You may already know this, and the RSI concerns still stand (I'm not sure what all goes into RSI risks), but wanted to clarify if the concern is over pressing 4 keys at the same time that are all over the keyboard.