A really useful plugin for hiding away all of the metadata XML files whilst you’re developing in Sublime 3 is ToggleExclude. Check out the package listing over on PackageControl.io to see how it can really help with helping you focus on the files which matter when developing.
https://packagecontrol.io/packages/ToggleExclude
Below is my configuration file for hiding away Apex class, Trigger, Visualforce Page, Visualforce Component and Lightning Component metadata files.
{
"conditional_file_exclude_patterns": [
"*.cls-meta.xml",
"*.component-meta.xml",
"*.page-meta.xml",
"*.trigger-meta.xml",
"*.cmp-meta.xml"
],
"enabled": true
}