Custom Social Icons

Is it possible to add our own custom social icons for other places. While the ones I need to add aren't really "Social", they are for profiles that are used to sell items and talk with people that have similar interest. On another note I wanted to say that I can't believe how simple to edit these templates are. So far the only couple hick-ups I've ran into is wanting more icons (custom) and a padding issue that I haven't figured out how to fix. Maybe these are available in the Pro? Thanks again and awesome work!