FPS camera

[Freeze]

Edit mode: All
Location: "Views"
Function name: Toggle FPS camera
Function icon: a camera

Function action details:
With this function, we can move into the model like into a fps, using WASD + Space or ZQSD + space
I took the idea from a Magica Voxel function, demonstated here:
https://twitter.com/ephtracy/status/812371734972301312