This extension allows you to quickly open 2 files at the same time based on your focus:
Data Mode: html/.ts
Style Mode: html/.scss
I'm lazy and biased to myself, so this only supports .ts,.scss,.html. If you don't like it you can Fork Me!
It is recommended to key-bind the commands to the left-hand reachable keys to navigate around Angular really quickly. (Right hand tends to switch between mouse which takes longer). It is up to you to choose keybindings as I could not decide at this time..
Open Related Angular Files: Focused File will open sibling files with same name (columns 1-3 will be used)
Close Related Angular Files: Focused File will close sibling files with same name
Open Angular File Explorer...: Opens a dropdown of all .ts files, since .html and .scss are redundant. Selecting a component file will open all related files in columns 1-3.
Switch to Opened Angular File...: Make a keybinding to this like Ctrl/Cmd Tab for switching apps. This will switch columns 1-3 to already opened angular component files, or just open a already opened .ts file.
Switch to Opened Angular File...: Switch Modes between Data or Style files opening with html template. (keybinding is also recommened to navigate quick)