Multiple segmentaions per each image in thumbnail layout

[Rodrigo Perea]

Hi devs, 

This is a question regarding the itk-snap viewer. 

I am wanting to know if it is possible to modify the workspace manifest (*.itksnap) and assign multiple segmentations to each additional image in thumbnail layout mode?

Attached is a screenshot with itksnap3 where I can only see the same segmentation (e.g. t2 lesions) but I'd like to have, let's say a brain mask in the image below and the t2 lesion segmentations in the top images .

Thanks, 

Rodrigo