Help with step sequencer/PRV and saving clips

Firstly, I am very new to this DAW so excuse my likely dumb-sounding question: I just want to figure out how to isolate clips that I create using the step sequencer/piano roll. In other words, I'm trying to make separate clips that aren't affected by me switching softsynths within a single track. Ex. I created a beat I like using the Roland Groove synth using the step sequencer. I want to change up the beat a bit however but I noticed what I do to one clip, I do to all of them in that track. I want to keep the first clip but create a second with my changes. Is there a way to create clips and save them so I can just drag and drop where I want them? I tried to just copy and paste but it doesn't solve this issue of changing everything in the track when I change up the beat. Like I said, this is definitely beginner stuff but I'll probably solve this a lot faster with some help. Thanks!

It helps a lot, thank you. The second part of this is that I cannot seem to find out how to create a new clip to add to the arrangement. So, I have unlinked the clips which is helpful when you want to extend the clip to replay the same pattern by dragging; I just don't know how to add an entirely new clip. Ex. http://i1.wp.com/img.yout...uVullmNfk/0.jpg?w=640. In this picture, if I wanted to add a new clip to track 1 after the first three clips, how do I do that? I want to be able to create a new clip, use the the softsynth step sequencer in it and repeat. Thanks again for the help.