Installation notes is a free text box of additional notes that relate to fitting charges. Usually this is used for fitting terms and conditions. The notes you enter here appear on the fitting details screen so you can amend and add to them each time they are used.
These notes appear under the fitting description on the printed quotation.
From the main toolbar click Fitting Setup > Installation Notes
Fitting Charges
Add a fitting charge to a quote/order
Fitting charge setup (by Menu)