Use ctrl and lmb or rmb anywhere on the timeline to either change the overall length or just the start frame or range....who knew?! 
I found it in a random Youtube vid reply....it's not mentioned in the docs....I wonder how many others have been in the dark about this one for countless years
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I found it in a random Youtube vid reply....it's not mentioned in the docs....I wonder how many others have been in the dark about this one for countless years
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