Hello,
If I understand your question correctly, this is not possible at the moment.
Users can only issue a withdrawal to one address. They can of course issue many withdrawals and each withdrawal can be to a different address.
In the upcoming version 6.0.0 of wallets I have implemented a new withdrawal batching feature. With this feature, if there are multiple pending withdrawals for a single coin at any one time, and if the wallet backend supports it, the plugin will issue a transaction with multiple outputs. This will save some network fees, but the users will still be charged the full withdrawal fee as set by the admin. Wallets 6 will be released around Q2 of 2021.
Hope this helps. Please let me know if I misunderstood your question.
with regards
