I am having trouble selecting a good portion of my timeline (including everything, transitions, music, etc) and moving to the right without having some parts to be shifted to wrong palces. A lot of times the end of certain movies get cut off, so I have to strech the clip again and find the right spot I had before than I end up creating a much bigger mess. I cannot find a way to select all the clips I want to move and have them freezed until I drop the click of the mouse. I am new to this and have been watching tutorials at lynda dot com to keep up with ny learning. Any help would be very much appreciate it. Thanks.
Use the Track Select Tool (right below the Selection Tool, and it's a dashed rectangle with a right-facing arrow in it), to Select everything on a Track to the right of the cursor. Once Selected, just click-drag as far as you need.
Select the Track Select Tool (A). Place it over the clip from which you want to move everything.
For multiple track hold down Shift. Hold down the mouse and drag to the right.
Quick way is to lasso all the clips you want to move and drag it to the right.