Entering currencies in other wholesale roles (wholesale plugin)

We are using the WholeSale Suite plugin for wholesalers with the role “WholeSale Distributor”.
In the currency the default currency is EUR and we added GBP and others as other available currencies.

In the variations we see a field Wholesale Distributor (£).
As we want to set a fix GBP price, i tried filling in this field but it doesn’t take it on save.