Wista VX bubble level

I just purchased a :) used Wista VX, it has no bubble level. I've seen many photos of the VX with a bubble level inserted on the top left of the camera.

Any way to install one or just use one that mounts on the accessory shoe?
Thanks,
Jim

Pn the accessory shoe. That is more practical as it would also let you place it against the lens board so you would use one level rather then multiple ones.

Thanks Bob,
Ill try that as I have level for both vertical and horizontal that mounts in a shoe.
Jim