Emulate a switch

I'm trying to find components to create a switch which can be open or closed. I'd like it variously opened and closed for parts of my simulation.\

I've tried using "switch with digital control" using various pulse and clock components to control it, to no avail so far.

Specifically I'd like to keep the switch open for 5 seconds, then closed for the final 5 seconds of the simulation.

Thanks in advance for your help.