How to get to the beginning of a segment

Is there a way to go to the beginning of a segment? Sometimes I have a segment that has many lines and I have to make changes to the segment starting from the beginning of it and it is a nuisance not having a way to get to the beginning of the segment with a keystroke. I checked all the shortcuts, but I do not see one that says "go to beginning of segment" or something to that effect.

Thank you in advance for whoever responds.

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