Read the Commands.html. Lists don't exist in Axe.
However, pointers to RAM exist, and there are some RAM areas available. Some of those areas even have predefined pointers, such as... L1-L6.
The area pointed by L1 for example is 768 byte large. Probably enough for your uses. You can do 1→{L1+0} and 2→{L1+1} for example, or 512→{L1+0}r and 1024→{L1+2}r.