Inserting the sim card on your galaxy s6 edge is pretty easy. The sim card slot is located on the top of your phone. To open it find a small pin, and push it in to get the sim card to pop out. Once the sim card try is popped out simply place your sim card in close it, and your phone will do an automatic reset.
Something to keep in mind is that the galaxy s6 and galaxy s6 edge both have different sim card sizes. The galaxy s6 edge has a little bit bigger of a sim card compared to the galaxy s6. Also the sim card trays are located in two different places as well. The galaxy s6 has a sim card tray on the side of the phone as opposed to the top of the phone on the galaxy s6 edge. Either way inserting your sim is not very difficult and should only take about a minute or less.