Hi Vik, 

Thanks for posting in the Community!

Unfortunately, at this time, it is not possible to reset the results of a visual activity in Lucidchart. However, I completely understand why you would like to have this capability and recommend that you post your feedback in our new community. For more information on how to share your idea with the community, please review our 'Feedback and Feature Request' community article.

As a workaround, I would recommend duplicating the visual activity you designed. Doing so, will generate a copy of the designed activity without retaining any recorded results. To duplicate the visual activity, simply right-click on the activity and choose the duplicate option.

I hope this information is helpful. Please feel free comment any further questions or concerns below.