Quickly and easily post your listings to Craisglist using the Share My Listings widget. Open Share My Listings – it’s in the External Links area on the Matrix home screen. From there, click on the Craigslist link at the top (circled in red). Select on of your active listings from Step 1. Follow the instructions, and you will create a pre-formatted Craigslist ad, complete with photos, public remarks and your contact information.