This script is currently in Alpha testing. It is functional, but there may be known problems or some of the features may be incomplete. It should be safe to use but anything and everything about how it works and looks may change drastically at any time.
HideRail adds a button to the Oasis toolbar that can hide the Wikia Rail when clicked (the bar on the right with the Recent Activity / Recent Uploads / Ads / etc) and restore it when clicked again. The search box will remain visible after the rail is hidden so you won't lose any important functionality by hiding it.
By default, Oasis squeezes articles into a rather narrow 670px column, you can use this tool to get the full 1010px width instead. This reduces the amount of scrolling needed to read a whole article.
Beyond article pages, the script also provides functionality for improving Edit pages by hiding the Editor Rail in Visual mode, not just Source mode. It also includes OasisWideMode built-in, which lets you enable the 1200px Oasis skin on any wiki.
For personal use, add the code snippet below to your global.js page (for use on all wikis) or your common.js page on your wiki (for use on a single wiki). Note that personal JS must be enabled for your account.
Note: In this example, pay close attention to the placement of commas and other punctuation. For people who aren't familiar with programming (and even those who are!), a common mistake when writing code is to accidentally delete, forget, or misplace critical symbols like commas or quotation marks. This can cause a syntax error that breaks the code. Carefully follow the convention shown here when using importArticles.