Only able to produce report charts on current holdings

Hi, I’m relatively new to PP and still finding my way around its functionality. I’m hoping someone might be able to help with report charting.

I can easily produce a chart based on my entire portfolio, or any of my current holdings, which is great. But for some reason nothing is plotted in a chart if I base it on a security I formerly held, or which features in a watchlist.

Am I missing a trick?? Any guidance or advice would be hugely appreciated.

Try adding a benchmark.

But bear in mind that the resulting chart will not include any dividends.

What actually only makes sense is to take accumulating ETFs as a benchmark, or shares that do not pay dividend.

Big thanks @ProgFriese - a benchmark is exactly what I required and appreciate what you said about dividends