JP1 Remotes

I'm looking to achieve the reverse of a macro function - I need the system to output code 1 when the left key is pressed, output code 10 when the 1 key is pressed, and output code 11 when both the left and 1 keys are pressed simultaneously. Can this be configured on any of the universal remotes we use? Additionally, if there's a "shift" key functionality, I'd like to reassign it to either the left key or the #1 key in this scenario.

We can't do the simultaneous press thing but we can do Shift, the Setup button doubles as a shift key, but it works slightly differently to regular shift buttons. Normally, you hold the shift key and the button itself simultaneously, but on our remotes, you press and release the Shift button, then you press the actual button.