When I tried the wallet last time, I needed to specify amount to receive. Can you make it optional so that the sender decides? Bolt11 invoices can be created to "any" amount.
Updates on Helm Wallet:
1. New landing page at https://helm-wallet.com
2. Set Notifications to be notified about app updates and received transactions
3. New Point of Sale (PoS) mode 👇
Discussion
I'm afraid that's not possible. Invoices are generated by Boltz, on a swap request, for which it need to pass the amount requested to swap.