In WebStorm, if I right click on a file and 'deploy to account', why does the upload take all new files rather than just the one I right clicked on ?

If you just want to upload a single script file, right-click and select ‘Upload File to Account’. The ‘deploy’ option is to deploy a ‘project’, and what gets included in that deployment is defined in

deploy.xml

which has a default of all script files and all objects.

@Mike Robbins Thanks