Firstly, you must create your own price list. There are two ways you can do this.
1. By uploading a price list. Click this link for information: https://buildxact.freshdesk.com/solution/articles/6000008073-how-do-i-add-my-own-price-list-
2. Manually set up your own price list through the Navigation menu. Click on Pricing > Price Lists. In the screen that appears click the green + button to add new.
Then follow the prompts to add your own price list.
Once you have your own price list, there are two ways you can add your items:
1. Add the priced item from the estimate screen:
While in the costings of your estimate. use the browse price list button to both browse prices and add new prices.
e.g. If you type a term into the item line and it returns no results then hitting the "Browse Price list Button" will prompt you to add it.
2. Run a second tab with your price list open and just add as you go:
Buildxact can be run in multiple tabs. To open your pricelists in a second tab follow the image below. Then just save price items as per normal.