piCorePlayer with Raspberry Pi 4 Metal Case with 3.5" TFT Touchscreen (480x320)

I use a Flirc case with piCorePlayer installed on a RP4 with a USB Hard Disc to take my whole music library on holiday to use where I have no Wi-Fi. I set the Pi as a WAP so I can connect to it from my Phone, but am interested in getting this case with a built-in 3.5" touchscreen to control the player with Jivelite: Raspberry Pi 4 Metal Case with 3.5" TFT Touchscreen (480x320).

If you click 'View More' you'll see instructions on how to download scripts to enable the touchscreen. I'm fairly new to Raspberry Pi OS and piCorePlayer, but assume these instructions are for Raspberry Pi.

So my question is, is there a way to download and run these scripts directly in piCorePlayer to enable the touchscreen on the case- or is the pCP OS too locked down to enable this?

Thanks

Andy