BibWord is designed to create your own styles. So yes, you can create this yourself.
Using a BibWord style, removing the surrounding brackets would be as simple as letting the openbracket and closebracket elements empty.
Using a BibWord style, removing the surrounding brackets would be as simple as letting the openbracket and closebracket elements empty.
<citation>
<openbracket></openbracket>
<closebracket></closebracket>
<!-- a lot of other code -->
</citation>
Then, in the formatting of an in-text citation, you just specify that the year has to be between brackets. So something like below<citation>
<!-- a lot of other code -->
<source type="Book">
<format>{%Author:0%{ (%Year%)}}</format>
</source>
<!-- a lot of other code -->
</citation>