...

• Set up the library-element-to-be and insert the variable syntax when needed, e.g. as part of an item ID.
  Image RemovedImage Added
• Add the element to the library
• Use the library element by dragging it onto the page. You will be prompted to enter specific values for the used block variables:
  Image RemovedImage Added
• All occurences of variables in the inserted block are replaced by the provided values.
  Image RemovedImage Added

Variables for run-time substitution

...