Name: selection
Input: Multiple paths.
Output: Group.
Definition: Short description of the function, style of the old system manual
Argumentlist:
Argument No 1 (required) Path with group as last component.
Argument No 2 (required) Keyword:
Argument No 3 (required) Path with element as last component.
Argument No 4 (required) Condition.
Discussion: Detailed explanation and examples