It is difficult to say since we don't know which model
projector you have. Some projectors have a mini-TRS
jack that you can make an extension cable to run from the remote to the
projector, bypassing the IR. With this set-up, you would just run two cables, one connected to each
projector, and
plug the remote into whichever
projector that you wanted to control. Some projectors also have an IR sensor on both the front and the back of the
projector. If this is the case, you can either disable the front or the back (through the menu or with tape over the sensor) and then stand on the appropriate side, depending on which
projector you wanted to control at the time. I assume that neither of these models has
network capabilities, otherwise that would be another option.
Please share the model number of the
projector(s) and we can help you better.