Checkbox to hide Legend Parts in Billing

Hi there,

i’m looking for a way to surpress parts of the Legend on Bills.
I have a bill which includes 4 Ports/4 Graphs into one. We would like to send this to the customer, but we require part of the Graph-Legend to be cut off.
To be precise: We would like to strip the Graph of the In/Out-Parts from the 4 underlying graphs and only show the 95th %ile-Part in the Graphs which are included in the Bill.

Is there an easy way to achieve this or to even put a checkbox into the Bill-Editing-Site to activate this for every bill seperately?