Player Movement: Swimming Speed and other misc settings

[Logzombie]

Player movement currently has a severe lack of water based options, and thus all attempted movement in water while a player movement part is in effect, currently appears to halt the player completely, essentially being unable to move when swimming in any direction aside from vertically. I heard this was supposed to be handled via ground movement's settings but, this doesn't appear to be the case, plus individual settings would be fun to experiment with.
This needn't only be a category for speed specifically, but other options could be in play too, so I'll list some potential additions that will benefit the part and how they could be implemented:

Swim Speed: Similar settings as on land, to be able to change UPS values while also being able to change sprint and crouch speed, alongside Max Swim Speed.
Buoyancy/Gravity: Essentially just overrides how fast you fall while staying completely still in water, and/or how much you will either float upwards or sink while attempting to swim (Depending on what can be changed about Source's swimming mechanics.)
Ignore Water: The ability to just checkbox whether or not your entity will just, treat the water as if it weren't even there. Essentially just falling through it, having gravity apply as normal, and no ability to swim. Unsure how doable this is but interesting concept for player movement and will leave flight based PACs to continue travelling with their movement unchanged if they ever hit water.