Hi Jan
The copy function for the components will only be copied if you have used Material BOM during the selection of the components in the source Task List.
In other words, at the header Task List of there was an Assembly Entered and if this Assembly had a Material BOM and you have selected the components from this material BOM, then the components are copied.
This is for General task Lists. Similarly for Equipment or FL Task Lists, if you have used BOMs, then these will be copied.
Regards
Savas