In the 【Management - Tools - Short Links】 module, go to 【Short Link】 and click on 【Add Short Link】 on the right side. In the pop-up window, enter a 【Remark Name】 and the 【Original URL Link】, then click on 【Confirm】.
In the 【Management - Tools - Templates】 module, click on 【New Template】 on the right side in the pop-up window, select the short link that you want to insert.