The OnePlan Array tool can help to place multiple of the same object evenly
The array function is now available on most object in OnePlan Studio - you can use it for anything you place, but not for things that you draw (such as routes, areas etc).
To use it, place your desired object on your event plan. In the properties panel, on the right-hand side, you'll have the option to use the array tool on that object
Rotate and finalise the placement of your first object. Now using the array tool, decide how many rows and columns of that object you need within your plan. Type these in, along with the desired spacing between each object, and Studio will update your map.