seperate strips

I imported multiple images in the video sequence editor.
How can I seperate the strips.
Need to seperate it into 30 frames

you can K cut a strip at the marker. The strip will be cut just like with a razor blade (which is what we actually used to use on real film).

Thanks but I meant this : Making the animatic with Sacha
I think it is a new feature for the next release of blender !?