Packages such as solidworks and NX have a 'gusset' command in the sheetmetal environment. This is very useful for creating stiffening ribs across bends. The current way of doing this in Creo is by using forms which is very time consuming and the results are not easy to obtain. I would highly suggest incorporating this feature into a future build.
Apologies if this ends up in the wrong place.
See below a couple of examples from other software.