If you pick your own stocks, chances are most of your investments ideas come from various online sources like stock screeners, sell-side analysts recommendation, or what fund managers own in their funds.
You can track and analyse how these recommendation have performed over time using labels.
Go to Settings, Labels, select holdings, and create a label for the source recommendation.
You can labels multiple recommendation sources for a stock. And when you run the Performance Report, you can filter the report to analyse how well the stocks have performed by source.
If the source provides any target price, you can track that in the holding page.
Tracking recommendation help you analyse which source provides high quality ideas, how to size future investments, and compare that against your own ideas.