Get a universal remote for your home theater. Flipper isn’t really that usable and not enough buttons for that task. It can, but you’ll be much happier with a Logitech Harmony.
The knuckleheads who overspent on our last house left a home theater system with a URC brand universal remote. Once I waded through some incredibly unfriendly forums (apparently the company does not distribute direct to consumers) and finally found an old but usable version of the software, it took a couple of hours to learn it well enough to get everything set up, and I like it better than the Harmony we used to have. When we moved again, I left the projector and speakers, but brought the URC and receiver with us.