Dynamic Lighting & Party Split Between Maps

Hey errybody.   Running a game where the party’s about to be split, half of them on one map, half of them on another for two concurrent stealth missions.  I’m using dynamic lighting (which I love) and my only concern on running the mission is that if the one half can’t see what the other half is doing, it’s going to be boring as shit for everyone, half the time. My current solution involves populating each map with tiny, blank tokens, set to see and with night vision, first map being populated with blank token 1, the other with blank token 2.  The members not  playing map 1 will be assigned blank token 1, with the result that they should, in theory, be able to see through those tokens but being tiny and blank, won’t be able to interact with them (barring some weird luck).  Same with the second map, in reverse. So here’s my question to the experts: is there a simpler way to give certain players the ability to see the whole map on which they won’t be playing?  Thx!

I would do exactly what you're doing - a transparent token that is controlled by players on each page. You can improve this slightly for yourself as GM by adding a small GM-only aura to the transparent token, so you  will know where it is easily, but it won't be visible to your players.

I have done the split party using two maps and DL.  I have a timer which I use to switch between the split groups so as not to leave one group hanging too long.  I will also take advantage of decision points or climatic points (roll initiative, now back to the other members...) which leaves the first group time to do their strategic planning or talk through what they are going to do.

Thanks, @Jarren. @Oginme: I've dealt with split parties before; my question's about letting the people who aren't playing a map be able to see the map, in spite of DL.  My current plan is as I've said, above.  Do you have a better solution?

The most straightforward way is just to give all of the players control of all of the PCs, so that anything one PC can see is visible to all players.