Step 1: Click on the 'Settings' icon for the desired file.
Step 2: Click the 'Tags' section, enter a custom tag and hit return to save. You can create multiple tags per file.
Step 3: Saved tags appear as suggestions when tagging other files.
Step 4: Search for tagged files by clicking the 'Search' icon in the upper right corner of the console.
Step 5: Tagged files show.