Extend already existing bend length for sheet metal?

Parts And FeaturesSheet metal 

I've had this situation many times now, when I have for example 2 bends next to each other with a different angle which makes me have to create those bend in 2 different functions and they don't "look pretty" together so i have to manually edit them to make it right. Sometimes there a little piece of the bend itself that id like to add but i have yet to find a way to add to a bend and for it to still fold for the flat pattern.

Does any know a way to either add material to a bend or to make it bend right from the start?

Here is an example of a corner I have to "make pretty";