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I sometimes need to keep the minibuffer in Emacs unchanged to see the displayed information as a reference. For example, when looking for type information of an expression in OCaml, I want at least the type is displayed in the minibuffer (as in the below picture) until I want it to be cleared, says, by pressing some key strokes.

enter image description here

The problem is that for every command that I perform, even moving cursor around, the previous information displayed in the minibuffer will be immediately cleared.

Is there a way to customise the minibuffer so that it can be kept unchanged or to be cleared by pressing certain key strokes?

hjpotter92
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Trung Ta
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    The information that appear in the minibuffer comes from the `*message*` buffer. So, you can do `C-h e` or `M-x view-echo-area-messages` or `left click on the minibuffer` to open it. – djangoliv Aug 18 '16 at 08:13
  • Thanks! That is one of the option. However, is there any way to freeze the minibuffer, or precisely, the echo area? – Trung Ta Aug 18 '16 at 08:47

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