Please send us the site url so we can check the backend for comment issue.
Its not possible to add testimonial from the customer. For this you need to use customer review plugin.
The clear is using when floating element.
Eg: if you are adding an image to the left side and one is right side then you can use [clear] just below it so it will be clear the float element for next contents.
1. Is that possible to make or add search in the section I of the theme ? example Search
2. Section II, In the dollar is that possible to add strikethrough text and non strikethrough. Since we want to show up old price and new price there if possible. Old price with strikethrough text and new price without strikethrough text.
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