The folks at Manhattan Prep created an Online GMAT whiteboard simulator. As of now, it’s probably the only resource out there which captures the Online GMAT testing environment so it’s a must-have for anybody
choosing having no other option but to take the test from home. It won’t fully address the issue of a computer mouse being an incredibly clumsy utensil for doing math but it will at least allow you to plan how you want to set up your “scratch paper” and allocate space. The Online GMAT has been available for a week now and people have begun reporting back on their experience. More on that to come!
Source: Manhattan Prep