I will have do defer to your knowledge of Macedonia tax law here. A proper understanding of the details of what needs to be achieved to comply with your laws and the permissible options is the critical part. When that is understood and the most appropriate option for a particular client selected, actually documenting it in Manager should be relatively straight forward.
The VAT worksheet localisation Description field could be a good place to document recommended work flow in Manager when using Manager for VAT in Macedonia.