Link between activities and supplier/customer invoices

Hello,

1) Is there a possibility to directly link an supplier invoice (or payement) to the activity it is supposed to be attached to, so the total is automatically increase in the costs of the "activity" section ? Or maybe is it possible to through the "activity expenses" section ?

2) Also can an expense be linked to the activity in the "expenses dashboard" (in the "report" section) ?

3) Finally, can a customer invoice (or payment) be linked to an activity so the activity appears in the "Summary of orders / customer invoicing" (in the "report" section) ?

Thank you, 

JL