Hi and welcome to the forum.

Sorry but I had trouble understanding what you meant. Was it something along the lines of:

"Can you remember what you want to do a lucid dream while dreaming? And if so can you remember it if you have a bad memory?"

Well if this is the question. Then yes you can remember to do something in a lucid dream even if you have a bad memory.

It's best on thinking about what it is you actually want to do before you dream. Some dreams can be clear though so you won't need to actually try hard to remember.