Hyper10N, please avoid double posting, as it is against the forum rules. You can use the "Edit" function on your posts to add additional information you've forgotten or respond to multiple people. You can review our forum rules here. Thank you.
This is to give all posts a fair chance to be answered. Next time just edit the previous post.
As for the issue, side view is only enabled if you turn it on in the system tab. Have you done that? If you haven't, it will never show up, regardless of any plug-ins you use.
Otherwise you need to make sure the plug-ins are all up to date, and your project is version 1.5.1. If that is not the issue, post a screenshot of all of your plug-ins as you are probably having an issue with plug-in compatibility.