Copy

It copies the value of the filtering variable into a new one, formed by the parameter name. If the regular expression is given in the form of the parameter pattern, only the values,fitting this expression will be copied.
Parameters:

Example:

# declare variables "a", "b" and "c"
Set a foo
Set b bar
Set c foo\ bar
# Copy values of variables which contain word "foo" into "d"
Filter Copy a b c WithParams name=d pattern=#foo#
Dump d

Result:

d => foo
d => foobar