wait_for_key in tasklist

I was wondering whether there is a a function similar to wait_for_key that I can put under tasklist? The reason for this is that there are certain instructions that require looping upon errors so I need to put them under tasklist instead of block, but the instructions also require pressing Enter to proceed. I do not want to put Enter as one of the keys because the status of Enter does not need to be recorded. Any help would be much appreciated!