[REQUEST] - .elevation() opacity control

[quantiq]

Is your feature request related to a problem? Please describe.
When using Level module, any persisting effect can be seen from the lower levels.

Describe the solution you'd like
Assuming you are in a room on the 2nd floor of a building, which is 20 feet high with the floor at an elevation of 20 feet above the ground and the ceiling at 40 feet, you have a graphical effect in the form of a tornado keeping you airborne, currently hovering at 30 feet. What I'm thinking is for the .elevation() to incorporate an opacity range. Specifically, tokens below 20 feet and those above 40 feet should be unable to see the tornado.

Is this something that can be done?

Thanks