On the General tab in the dialog box of the ribbon command File | Options 
, you can make general settings:
Maximum number of undo steps
Here, you can set how many actions can be undone with the command Undo 
(in the Quick access toolbar). You can increase this number up to a maximum of 999 undo operations.
Note: On devices with little main memory, it is not recommended to increase this value.
User info
Here, you can enter your name and initials. This information will then appear, for example, in all comments that you insert.
Show warning when loading OLE objects
Mac, Linux, Android/iOS only: If this option is enabled, the program displays a warning that OLE objects cannot be displayed when you open a document containing such objects. (OLE objects can only be displayed on Windows.)