# Hiding and Collapsing Output
The menu items **View → Hide** and **View → Unhide** allow the user to hide/collapse and unhide/uncollapse part of IDA's output.
## Hiding instructions or data items
It is possible to hide or replace some parts of the listing by a short text.
To do so:
1. Select some instructions or data items
2. Invoke **View → Hide** (or Ctrl+Numpad-)
3. Enter the replacement text and optionally pick a color.
The selected instructions, or data, are replaced by the entered text. They are not removed from the database. They can be made visible again by using **View → Unhide** (or Ctrl+Numpad+)
## Hiding a whole function
To hide a whole function, place the cursor on the function name, then **View → Hide** (or Ctrl+Numpad-). You can also right-click on the function as shown below:
## Terse struct representation
When defining structure instances in data, IDA will, by default, try to display them in terse form, with everything on one line. By using **Unhide**, you can have it in full, or verbose form, with each field on a separate line and a comment with the field name. Conversely, you can use **Hide** to collapse a structure instance into a terse form. Note that it may not work due to the specific structure's layout.
## Collapsing blocks in the decompiler
The decompiler also has a similar pair of actions. They are available via the context menu or the **Numpad-** and **Numpad+** hotkeys.
