Although you can’t change the interface font overall, you can override the font used on most buttons (Automation Commands) and menu buttons.
<font Times New Roman>Button Name</font>
Replace “Times New Roman” with your font name “Phetsarath OT” (or however the font is named once installed in Windows)
For menu buttons you’d want to change the Header
field, like this:
If you want to change them all, you can using a script to update them all automatically which you can then run from Database Tasks
.
Update all product buttons on menu:
UPDATE ScreenMenuItems
SET Header = '<font Times New Roman>' + Name + '</font>'
FROM ScreenMenuItems
GO
Update all category buttons on menu:
UPDATE ScreenMenuCategories
SET Header = '<font Times New Roman>' + Name + '</font>'
FROM ScreenMenuCategories
GO
You can follow instructions here if you want to know how to create the Database Task script: