You can manually edit an in-text citation. Activate the citation by clicking on it. While it is active, the citation is framed in blue and you will see editing options in the Mendeley Cite menu.
The font of the citations and the bibliography can be changed in Word.
Changes to reference details ought to be made in the Library of Mendeley Reference Manager. Remembert to click on More -> Update From Library in Mendeley Cite (in Word) if you make any changes while your document is open.
You can turn the bibliography into plain text by breaking the link to Mendeley:
At Arcada we use APA 7th Edition as our referencing style. In Mendeley it is possible to create your own styles, however. If you can not find a style that suits your purposes, you can edit an existing style on Mendeley's site using CSL Editor. Select a style to use as a template. CSL Editor saves the edited style on your Mendeley account and you can share it with other people.