Switching Portals on a Layout

[Niet32]

Is it possible to switch a portal based on changing a value from a value list?

i.e Let's say the user chooses store # 100 and there is a portal that lists all the items for that store. The user then chooses store # 105.

Can the portal then be switched to the info housing store # 105?

Thanks for any insights!

[comment]

It depends: is the info about store # 105 in the same table as the info about store # 100?