Do one of the following:
To make the dimensional values update automatically as you work in your document, choose Tools→Links→Automatic Update On/Off to turn the option on. When the option is on, a check mark appears beside the command name.
To delay updating dimensional values until you have finished working in your document, choose Tools→Links→Automatic Update On/Off to turn the option off. When the option is off, there is no check mark beside the command name.
To update dimensional values when the Automatic Update On/Off option is off, choose Tools→Links→Update.