For example if I play 2k hands with a player.
After that, I somehow decide to purge my database in HM2.

I am guessing the HUD stats I collected are all gone now?
If that´s the case, how do I save infinite amounts of hands? Like do I need to do something so that I can track a player over a longer period?

Please someone help me with this.
For example on Party I can save the data for a certain amount of time (f.ex. 100 days) . HM2 will import the data. The HUD will show the data.
But what is after let´s say 200 days. Is the data from the first 100 days just gone and will not be included in the HUD data?

I am so confused.