Stashing changes shouldn't be difficult. GitBreeze has a separate section for stashes, to enable you to see what you're dealing with easily.
Apply & Reinstate the Index
Applying a stash to your code can mean losing the current changes that you have. GitBreeze can try to keep those changes. It might mean a conflict, but its worth a try.
Compare & Contrast
Compare each of the stash files not just to the working files, but the latest commit's files as well, so you know exactly what's altered since you stashed them.