You can create a new preset for this, you have a Viewer and Export tab by default in the same window. Click the Export tab and you should be able to follow
(select .mp4 if you want the exported file to be a video)
This should be possible by just reversing the order of dimensions, width -> height when defining dimensions
Try to explain the effect you're trying to achieve if this isn't helpful.
Comments
You can create a new preset for this, you have a Viewer and Export tab by default in the same window. Click the Export tab and you should be able to follow
(select .mp4 if you want the exported file to be a video)
This should be possible by just reversing the order of dimensions, width -> height when defining dimensions
Try to explain the effect you're trying to achieve if this isn't helpful.