Broadlink RM4 pro

Hi
I have Broadlink RM4 Pro and was hoping to control my RF shutters (Somfy situo5 rts). The frequency of the shutters are 426.0625mhz which seems not to be supported.

I presume there is no way around this with the RM4 pro so is there a similar item that will handle this frequency. Ideally one that plays well with HA as Broadlink does.

I’m not too technical and any help is appreciated

Thanks