How generate new list in another worksheet from existing list?
 

I have a list in sheet 1 covering several colums, with a lot of parameters.
Lets say I have AA, BB, CC as parameters used in colum A. I would like to
sort in a new list, in sheet 2, all AA. I would like to have all the
belonging parameters in the same row as AA included in the new list (as if
you were using filter).

I would also like the new list in sheet 2 to update and expand it selv, when
the main list in sheet 1 is updated (if the selected parameter is a part of
the update).

How to do this?