Using layouts in Sublime text can help save time navigating between open files.
Going to View > Layout is where you can select the layout style that best suits you.
Single : ALT+CMD+1
Columns 2 : ALT+CMD+2
Columns 3 : ALT+CMD+3
Columns 4 : ALT+CMD+4
Rows 2 : ALT+SHIFT+CMD+2
Rows 3 : ALT+SHIFT+CMD+3
Grid 4 : ALT+CMD+5
Learning the shortcuts for assigning open files to the group is essential to speed up your workflow.
The groups are assigned in order like the columns.
Column 1 = Group 1 and so on.
Use CTRL+SHFT+(group number to move a file to that group)