jit.plot buggy or undocumented?

Hi list,

Is the x dim output of jit.plot limited to 256? I can change the dim, but as soon as a matrix comes in it´ll pop back. width an height are both effecting the y dim only (which is even documented) but I don´t get the point of this.
setting adapt 1 and changing the planecount to 1 will adapt the dim but this is not allowed since a min of 2 planes are needed.

below is a patch with a minimum of controls to play with and to see what I mean.

thanks

Falk