When I add a table widget to the cockpit and change the header titles to the Persian names, the changed columns are not shown in the designing and preview modes.
Hello,
try adding URIEncoding="UTF-8" to you server.xml connector and see if it works.
Also, take a look at this thread
https://www.knowage-suite.com/qa/2761/chinese-characters-are-not-supported?show=2761#q2761