Personal trainer is a rather limited feature i think not a lot of people use.

Players rahter use repetitive training using green packs to restore energy, but in fact this is a type of personal traing a lot of time consuming.

The pesonal trainer could have the option of making such a training, que player would choose the player, the drill, the number os drill necessary, then the game would calculate the number of green packs necessary anda a a small cost of tokens to make the mass personal drill.

This would make this kind of training less time consuming making it available to everyone.

As for boost lab the levels can only be purchased as a lot, but that might not suit the players, there could be an options to buy partial features of each level for a certain number of tokens (more than the equivalent percentage of currency to those tokens) also a free level would have costs if the previous level wasn's completly purchased, this would allow players to buy the features their strategy values.

On both these options the players benefit from a better service and Nordeus would have a increased revenue since more tokens would be spent.