For information on using the task scheduler see this article. You can also use scheduled tasks to automate the update process of your mods. Shows a list of installed mods via the workshop browser only. Where you can install and browse workshop content. You will find the icons to use this tool on your server panel.
We have implemented a workshop browser that connects to the Steam workshop so you can install, update and uninstall mods with one click. Installing and Uninstalling Mods Using the Workshop Browser.