I have this situation:
The Grid fuse from the electricity provider is fused at 25A. The breaker to the Victron Multiplus II 5000 will be 20A. How can I set the victron to a maximum input/output current on the Grid AC port to 20A while still having the ability to use 45A (grid + multiplus) and using zero import/export (while of course this only works up to 20A and the excess above 20A will be used from the grid)?