Once you open a document, you can switch between inactive mode and active mode using commands on the ribbon.
From the Application menu, choose Open.
In the Open File dialog box, from the Files of Type list, select Draft Documents (*.dft).
In the Open File dialog box, click one of the following options:
Activate Drawing Views For Edit
Inactivate Drawing Views For Review
Tip:
This greatly reduces the time required to open a managed or unmanaged draft document.
Click Save As Default.
Click Open.
With the draft document open, select one of these commands from the ribbon:
Tools tab→View Activation group→Inactivate Drawing Views command--Immediately changes the document to inactive mode for fast printing and viewing.
Tools tab→View Activation group→Activate Drawing Views command--Immediately changes the document to active mode for normal editing.
If you try to drag a model file into a draft document that is in inactive mode--In the dialog box, choose whether you want to activate the drawing on-the-fly:
Click Yes to change the document to active mode and continue creating the drawing view.
Click No to end the drawing view creation command and leave the drawing in review mode.