The HS/HSL LibX Library toolbar allows you to select different places to search for the library resource you are looking for.
Click the ► on the LibX toolbar and see multiple options presented.
You may also click "Keyword" to see if other search options are avialable such as "Title" or "Author."
Among the options, there are "Full-Text by PMID" and "Full-Text by DOI."
These allow you to simply enter the DOI or PMID of an article and instantly check the availability of the full-text from the library.