Wiring question on Thermostat Upgrade

I want to upgrade my thermostat to the new t-3000 thermostat.

If you look at the picture, there is a red wire that goes into RH and there is a jumper from RH to RC (copper bare wire)

The old thermostat has screw down terminals that have large holes to accept multiple wires.

The T-3000 has those new terminals that do not require tools but smaller holes that just accept one wire. How do I get the red wire into the RH along with a jumper wire that will go to RC. Doesn’t seem like enough room. The holes looks like it can only accept 1 wire

Please see attached of the old thermostat

Only one wire should be connected to any terminal. You do not need a jumper in this case with the T3000. From the manual page 6:

If you have RH and RC, you do not need a physical jumper to connect the two terminals. RH and RC are connected by a digital jumper.