Rotation steps
A rotation step is not really an LPub3D feature, but can be used in building instructions to display one or more steps from a different angle. An example of this can be fund on page 8 step 11 of the official instructions for set 40252.
You can add a rotation step in LPub3D (which can be complex and difficult), but also in your LDraw editor like LDCad.
Download and open an LDraw file that has the rotation step for this step and navigate to page 6
Note the meta command at line 42 of the code: 0 ROTSTEP 180 0 0 REL
This tells LPub3D to rotate the model 180 degrees around the x-axle in 3D space relative to the the rotation matrix. The page should look something like this:
Now right click the assembly image of step 6 and choose <Add Rotate Icon>
Right click the border of the just added rotate icon and choose <Change Rotate Icon Background>
Change the background to <Solid Color> and make it white
Click [OK] and make it a global setting by choosing [No] when asked to change only this step
Right click the rotate icon and choose <Change Rotate Icon Placement> and choose Relative to <Step Number> and click the [Bottom:Left] button and then [OK]
The result should look something like this:
Note the meta command now at line 48 that says 0 ROTSTEP END
This tells LPub3D to end the rotation step and draw the assembly images from this point like normal.
Now go to the next page, add the next step and a divider
Right click the assembly image of step 7 and add another rotation icon
The placement of this icon can be set relative to the [Left:Center] the assembly as there is no room for placement under the step number.
Save your work.