Can a drawing which was created using First Angle be converted into Third Angle automatically, somehow?
Not automatically. Changing the projection in the drawing detail file will only affect new views, it is not retroactive. You can just drag projection views to the opposite side of the parrent view. Obviously you will have to do some moving around of views to get it to fit.
Alternately, you could change the projection setting, project new views in the same directions as the existing views and then switch the old view dimensions to the new views. However, there is a good chance some things in the old views will not be visible in the new views.
And of course, you will have to manually change the projection symbol, if it part of your format you may have to replace the format.
In Reply to Vedik Dalal:
Can a drawing which was created using First Angle be converted into Third Angle automatically, somehow?
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