Show and hide a shape depend on a filter is selected (between two dashboards)

I have two dashboards: in the first, you must filter by a client and in the second, there are two options:

1 - If it has been filtered by a client, in the second dashboard that client will be selected and you can filter by one of the addresses of this client.

2 - If the client has not been filtered, on the second dashboard, a rectangular form appears with a message and you cannot choose the addresses.

The problem is when I have not filtered by the client because I do not know how to hide the shape.

Thank you in advance,

Mayte