OK thanks, now I understand.
Static templates are static and are only rendered on the server side once, but:
It is possible to add a checkbox to [wallets_balance template="list"] so that the end user can toggle between seeing all balances, or only those that are not zero. This is customary in most exchanges and I will be able to include this in the next release.
Thank you again! I will notify you here when this is done.
with regards