How to add block plugin to header

I am new in developing OJS, I want to add block plugin navigation search, login, and translate to header so the preview like this

Please help me,

Thanks

Hi @hussein_al_muhtadeeb,

Block plugins can’t currently be added to the header – only the sidebars. To modify the header, you’ll need to edit the header.tpl template.

Regards,
Alec Smecher
Public Knowledge Project Team