Is it possible to make a beam fill effect?

I made a softbody type cube, but I want it to make it look like jello, but I don’t know how to fill in the sides.
The perfect idea I had was to use beams, but they only support 2 attachments. Is there a way I can have a multi-attachment beam, or another way to fill the sides?
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you might want to look into mesh deformation

well thats for blender type stuff, which i have no idea how to do, and thats for animation stuff