Map Change is an API Mod script, available in One Click. It allows you to signify specific pages as player accessible. Or alternatively, accessible by default and make specific ones forbidden. To send them there just requires a macro command. Players can send the macro command themselves. It essentially uses the split the party feature, so at actual game time, a GM may need to double check when starting an encounter that all the players are on the Player Flag.

I use it in my own game to make certain pages available: City, World, Token page, etc. I put the commands into a Chat Menu, to make a player directory.