The options sidebar can be placed on the left or right side of the visualiser when on a desktop. By default, it displays on the right side.
To change the side the options sidebar displays on desktop do the following
Navigate to Sign Customiser admin in your store
Click on "Customisers" in the home menu
Click on the customiser you wish to edit
Click on "General settings" in the left-hand side navigation menu
Scroll down to Desktop Column Order, choose Left / Right from the dropdown menu and
click Save at the end of the page to save the changes:
Here's what it will look like being on the right side:
Here's what it will look like being on the left side:
