I am new in Hybris, sorry if it is silly question. I have existing project and I am trying to figure out how to change backoffice ui. I need to change 'backoffice > Order > Orders'. I tried modifying cus_ext-backoffice-config.xml file. But it did not change anything.
You need to reset zk framework cache. Press F4 in backoffice, then click reset everything option in right top of corner menu. Press F4 again for return normal screen.