Doron, leave the Tempo setting on, and simply switch to Expand mode to save different Tempo settings in Panel Memory. It doesn't matter if the Tempo setting is on or off when you are in Normal mode, because the setting will change to the last Tempo setting saved.

When in Expand mode, the tempo and voice settings will be saved to that particular Panel Memory location (1-8). That means you can have the same voice in R1/R2 but maybe only play one voice (R1) in PM1, and both voices in PM2, but with different Tempo's with different Variation locations (1-4), and even throw in Technichord if you so desire. It makes recording easier because you can use the foot switch to move through the Panel Memory positions and keep your eyes on the music and your fingers on the keyboard. Expand mode can be your friend under certain circumstances. Happy Holidays!