No way to get an element free of brackets

[essen]

Using SUB to extract an element from a list just render the element still being
enclosed in list brackets. Seems being no command to get the element free of
the brackets. Using "Get" does not work either. This lack of command makes it
impossible to store a list of values in variables contained in a list. For example:
Doing a "For loop" on 2 lists containing values and the variables to store the values in, cannot be done.

lst1:={1,2,3}, lst2:={'myv1', 'myv2', 'myv3'};

For i1 FROM 1 TO si DO
lst2(i1):=lst1(i1);
END;

Any rounds in this loop will just produce {1}:={'myv1'}, {2}:={'myv2'}, ...
and so on. You cannot get off the brackets.

This is a serious drawback, and render programming with the Prime an impossible
task.