Hacking Discussion Possibly a good platform for a dongle.

[ModDog]

This might be a little overkill but if someone has the coding knowledge I think it would be great. There are a few versions out there but if you went with ESP32 project you could have a device that accepts batteries and has buttons hopefull allowing to select what to load.

Here is one example but there are few different ones out there: https://www.banggood.com/Wemos-TTGO..._96-Inch-OLED-Development-Tool-p-1213497.html