Product lines are a method of grouping together parts at your own digression. Doing so will allow you to update all of their prices simultaneously, which cuts out a lot of grunt work if the prices on certain parts change.
The first thing you'll need to do is to log on to your Profit Rhino account, head over to the parts section, and click the [Manage Product Lines] button. Doing so will bring you to the following screen:
CREATING A PRODUCT LINE (PART 1)
After you've clicked [Manage Product Lines] you'll see the pop-up on my screen. The next thing you'll need to do is click [Create Product Line].
Doing so will bring you to the following screen:
CREATING A PRODUCT LINE (FINAL)
First, choose a business type to add the product line to (plumbing, installs, HVAC, etc).
Next, add a description of what kind of parts you'll be seeing in the product line, so you can tell your product lines apart at a glance.
Then, name this product line, you can name it in any fashion you like.
Finally all you'll need to do is hit [Save] and you've got yourself a brand new product line that you can add parts to. Good luck.