Add multiple icons at same time
Hi Keremciu,

The sketch-iconfont is a really good plugin. I use it everyday to add icons to my UI.

One thing I think it can be a enhancement here, when I add icon with the grid, I just can add one icon at once right? Then I need to open the gird again to add another one, so can I add multiple icons at same time? It can save much time for me, thanks.
