Some notes about rolling dice on the site:
You cannot roll any dice on the first post in a new thread. Just make a filler post and then roll on your next one. This is on the first post ONLY. No need to keep making double posts.
You must click on Post Reply at the bottom or top of the thread to get the option for dice rolls. The quick reply text box at the bottom of the thread will not give you the option.
You can roll multiple sets of multiple dice of the same type. Just choose a die type, put in how many of the type, then click the + option to add another set and pick the same die.
Rolling your stats involves rolling 12 sets of 4d6, rerolling 1s, and then dropping the lowest die of each set. Then you pick the best 6 sets.
Happy rolling!