Login to your backend page, then go to BLUESKYTECHCO > Product Size Charts. Click to Add New to add a Size Chart
In the Name field: Specify the name of Size Chart.
In the Type field: Select the type of Size Chart.
In the Category field: Add the category to Size Chart.
Click to Edit with Page Builder to customize your size chart content.
After create a new Size Chart, you need to add it to products. Go to CATALOG > Products, choose the product you want to add size chart to, scroll to Product Size Guide and choose the Size Chart