Merge of variables not option to select main or branch

I’m using heavily variables and branches when prototyping. but when I’m in the point of ready to merge Figma only allows me to choose one or the other variables it’s not really trying to merge them both into same table. This is a huge setback and takes a lot of time to do manually where errors while copy pasting one by one the names and values is always very likely to happen. At least if we could copy past multiple variables from one collection to another and between files…