BitBucket: https://bitbucket.org/namida42/neolemmixplayer/issues/18/360-degrees-of-freedom-for-terrain
This may be too complicated to code, so if it can't be done then no worries.
An object can currently only be rotated by 90 degrees. Is it possible to make it so an object can rotate any number of degrees (e.g. similar to this (http://www.lemmingsforums.net/index.php?topic=1758.msg46468#msg46468))?
Rotating low resolution graphics by non-multiples of 90° is hard.
(http://i.imgur.com/R7IDJNi.png)
This is the same piece of rock graphic (shown on the far right) rotated 30°. The one on the left uses anti-aliasing and therefor looks quite blurry and will look quite out of place with other pieces that use a sharp limited colour scheme. The other one doesn't and looks strange and jagged.
It would require significant revisions to the rendering code. Fortunately, that's something that's on the todo list anyway. So we might indeed be seeing this capability in the future.