Allow "Continuous" Multiplayer Variable Modifier to work with Multiplayer variables

I think I've already reported this as a bug, but it may have been returned as "working as designed." So I thought I'd post it here.

The var/var-mod setup is very useful for multiplayer things, especially with the new scoping options, as we can easily send a value per player to anything that cares about it, using only 1 gadget (and a splitter if we want an individual player's value). But we can't simply send the current value constantly because when using "continuous" mode, it ignores the multiplayer setting entirely and sets all players to that value instead.

This is really unexpected behaviour, and seems like a bug to me. And for newcomers trying to understand how to use multiplayer variables for their game it's a huge caveat that just doesn't fit into any logical understanding of how this stuff works.

Please fix this problem so that users can easily add multiplayer support, and use this feature more flexibly.