In Denmark and I think also in some other European countries tests are run on the UAT frequency to transmit weather charts to pilots. See eg this link https://www.motorflyvning.dk/uat to learn more.
I do not yet see any possibility to get such an overlay to be presented on the EasyVFR 4 moving map?
I am using a Skyecho 2 and get both ADSB and Flarm but no weather overlay?
Up to now this was considered low priority because UAT is/was only receivable in the UK. Its already implemented in EasyVFR3, so porting it to EV4 should not be too difficult. We'll reconsider it's priority.