caffeine

Newbie here. There's something I can't figure out. I have a clip that I want to take two selections from and stitch them together on a single sequence. Graphically: +-----( A )--------( B )--------+ Clip +( A )( B )+ Sequence Doing A is no problem. The steps are: 1. Bring video into the clip preview. 2. Define the in point and out points. 3. Click the "Place clip on sequence" button to put the selection on the sequence. And boom, I have something that looks like this: +( A )+ Here's where I have the problem. Once I click the button to put the selection on the sequence, the button disappears. That is, I can set the in/out points for B, but I can't put B onto the sequence because the button disappears once I click it to put A on the selection. Why does the button disappear? How can I put two non-contiguous selections of a clip onto the sequence?