How to rotate object on a laptop because there is no scroll wheel ?

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You should be able to achieve the same result by holding 'Space' clicking the LMB, and moving the cursor. If you run into any more technical issues in the future, I encourage you to check out our online forum! ArtCAM has a very active forum community that offers quick and helpful support from other ArtCAM users! I have included a link to the forum below. Thank you for enrolling in the ArtCAM course! We hope you enjoy it!