The lOCAL attribute part of the component, how to achieve templateization, now every time you add a control, you need to manually modify the text of each custom display, if there are multiple pages, it is undoubtedly a big project.
If you want to set default properties for same component type across your entire application you can inherit the component, set desired properties and reuse it where needed.
We recommend this approach which makes it a bit easier as you won't have to change the tag names: Localize Radzen Datagrid Advanced Filter - #5 by korchev