To add Off Platform products to the segment, click into the Off Platform Products tab:
Click on the Off platform product you would like to add to the segment:
Once selected, click the arrow to move the product over to Off Platform Products in Segment
Multiple products can be moved at once. Click on the first product, type CTRL A to select all the products in the list.
If you don't wish to move all products, click the first product, hold CTRL and click the products you would like to move.
Once done, move onto Central Investment Proposition - Adding Portfolios to a Segment