vim hit “enter” on a specific letter

Question

I want to hit enter on the arrow symbol in a file. Basically after hitting enter the arrow key collapses to show more text. I have so many such arrow keys.

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Answer 1

see http://vim.wikia.com/wiki/Folding or http://vimdoc.sourceforge.net/htmldoc/fold.html

particularly: za toggles one level of folding, zA toggles all levels. You need to be on the node for this to work.

To open all folds in the file: zR (and zM will close all of them) (of course here, no need to be on a node, as it acts on all of them)