TextArea Gestures

Does anyone know where I can find something the explains how to edit text in a TextArea

Tap to move cursor… ok
How about selecting a specific block of text? The magnifying glass (long touch) seems to move the cursor, but not select a block.
Do you have to select “something”, then drag the blue balls to cover the area?
What if I want to DELETE (not cut/copy or share)…

Not sure they could have made it any more difficult

Double tap to select a word. Triple to select the seeeentence? (it could be paragraph)
Then yes, drag the selection refining tools to get the whole text you want. If you want to delete that selection use the delete key (the keyboard should be up during text editing)