Surveying and dxf

Hello,

I was searching for a software for volumetrics and I found Kubla Cubed.  Its looks easy enough which is a bonus but the available youtube videos do not provide much help (just my opinion) so therefore I am stuck.
I had my survey in a dxf file which I opened with Kubla.  I now want to calculate the volume, area, average depth and probably see the 3D representation but I cannot seem to find any actions to do that on the UI.

Any help with this?

Thank you.