Two other options.
1. Move your playhead to where you want to mark your In point, but before you mark the In point hit T to Mark Clip. This marks an In and Out point at the head and tail of the clip. Now hit I (or E) to mark your In point. You’ve now selected from the In point to the end of the clip. Hit X to extract, removing the marked portion and closing the gap between clips. One you get the hang of this you can execute all these commands in less than a second.
2. My favorite option: Top and Tail. Look them up in the control panel and add them to your keyboard. This does exactly what you want to do, in one keystroke. Move your playhead to where you would mark your In Point and hit Tails and it will extract from your playhead to the end of your clip. If you hit Top it will extract from the playhead to the beginning of the clip.
See point 1 of Scott Simmons post for more about Tops/Tails:
https://provideocoalition.com/ssimmons/story/some_avid_tools_you_might_not_use/
NOTE: Both of these commands behave according to your track selections. So if you’re just wanting to do this to clips on V2, don’t have V1 selected. Mark Clip and Tops/Tails actually look for the nearest common edit point of all selected tracks. So if you have V1 and V2 selected it will look for the nearest point where V1 and V2 have an edit happening at exactly the same time. Play around to get familiar with it and keep an eye on which tracks you have active if it’s not behaving like you expect it to.
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Michael Hancock
Editor