There are several ways to do this. You can hold down the alt while selecting to select a loop. You can select 1 and then hold down the ctrl while selecting another to select all that's in between. You can hit the b for box select and then drag a box over those you want to select or you and hit c for circle select and then drag the circle to "paint" the over the vertices you want to be selected. and hitting A will toggle between selecting all or none.

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Available on Amazon for the Kindle E-Reader Monster of the North and The Shimmering Mage

Today I break my own personal record for the number of days for being alive.
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I use Poser 13 and win 10