Yes you can fix JS script and plugin will not move it.
https://www.foxnetsoft.com/documentation-noppagespeedtools
If you need to fix JavaScript code on selected place into the HTML page, you should use data attribute data-fixedscript="1" for it.
Example
<script data-fixedscript="1">/*body of script*/</script>
<script data-fixedscript="1" src="/Scripts/jquery-1.10.2.min.js" type="text/javascript"></script>