There are no restrictions like that on default PokerTracker 4 statistics however there are restrictions on how data can be displayed on PokerStars:
1. If you are using color ranges in the HUD to change the color of a stat based on its value then PokerStars only allows 3 colors per stat. In HUD Profiles you use on PokerStars you would need to set just two color conditions under 'Color Ranges' and the default color for the stat will display for the undefined part of the color range - this is the one set to Foreground for the stat in the HUD Profile Editor.
2. If you are using
tournament stack filters then the values in the HUD are not permitted to dynamically change based on a players stack size but a filter icon will display in the HUD where it can be manually set.