Take our apologies for the delay in answering.
1) We don’t have the option for that globally. You need to set the sale price, and sale price schedule and enable a countdown if you want to show that in every product. There is no other way to show that.
2) Go to Theme Options > WooCommerce > Shop Elements > Sale & Out of Stock > edit Sale Label Size (widthxheight). Provide us with link to your product with the sale price to check why it’s too long.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.