CREATE A WALKTHROUGH IN REVIT
1. View Tab>3D view> Walkthrough.
2. Pick points for the locations of main views.
3. Click Finish Walkthrough.
4. Modify|Cameras tab> Edit Walkthrough
5. Go to Project Browser>find Walkthrough Category,
6. Open Walkthrough 1> Options Bar> change first frame to Frame 1.
7 Go to View Control Bar> Realistic.
8. Select Crop Region.
9. Modify|Cameras Tab> Edit Walkthrough (again).
10.Modify|Cameras Tab> Play.
11.When the Walkthrough is finished, click the button that has the value 300 (which is the number of frames) on the Options bar.
12. In the Walkthrough Frames dialog box, change the Frames to Second to 20. Click OK.
13. Play the Walkthrough again. This time it will be faster.