To my knowledge, Studio is one of the last applications not to allow more flexible ways of selecting text. As things stand, you can double-click a word to select it, but the only (mouse-based) way of selecting more than one word is to single-click and drag. My suggestions received a fair amount of support when first proposed. Basically we should be able to have selection methods like those of MS Word, the industry standard:

Idea 1
Double-click + drag to select a sequence of words in a segment. The double-clicking selects the first word, then keep mouse button pressed to select the rest. Same as in Word. Much faster, easier and less fiddly than at present and involves no keystrokes. No hunting for the right start point + confidence in knowing whole words are being selected.

Idea 2
Triple-click to select the whole segment in one go. Fast and easy.