Negative offset client

Negative offset is still not possible in version 1.6.4.

We have some display setups that have 2 x 46" screens stacked on each other in portrait view. The images used on these displays have a size of 1080x3840. On the client these images of an offset of 960, so we have to correct them. We're unable to input negative offset in the client, so we have to input the negative offset into the design, making it impossible to to edit the design afterwards, because the image shifts up and covers the buttons. Adding negative offset possibility to the client would be appreciated.

I see the offsetX and offsetY listboxes on the optionsform have a minimum of 0 as a setting. Please add a negative number, for example -1920, as minimum setting.