You will never get what you want until you refactor/rework what you have.

Have a look at the Philips HTTP Library code. It uses Asynchronous TCP sockets. Looks complex but is all driven on make a request and wait for data.

For your Option 1 above, configure 2 events, one that does light show and one that does not.

If the pronto is invoking them then invoke one vs the other. If homeseer is detecting something, then that's another issue.

The notion of a please-wait page is cool but there are other ways you could accomplish what you are looking to do. It would involve the use of Page Scripts and jumping to multiple or the same page and setting globals (System.setGlobal) or activity-based variables to control the progress state.

My offer still stands about facetime/whatsapp/phone call. Email me details and your config if you like to my email addy on profile (you likely already have it).

Lyndel