Just in case you still need clarifications:
1. For example type: #Region MyHiddenSubs right above the first Sub you want to collapse.
2. At the end of that sub type: #End Region
3. When you want to collapse, click the - (minus) sign to the left of #Region. To Unhide, click the + (plus) sign.
If you want to hide (collapse) a few subs, make sure they are contiguous, in sequence, see below:
#Region MyHiddenSubs 'MyHiddenSUbs can be any text you enter.
Sub MySub1
.
End Sub
Sub MySub2
.
End Sub
#End Region