Thanks Sunbeam for this! Activate before a mission is loaded or activate this then reload a checkpoint/save then you can use it as much as you like refilling health.

Nobody can see you! Activate before a mission is loaded or activate this then reload a checkpoint/save then you can use it as much as you like. Might need re-activation after cutscenes.

Use or bring up pause menu to see it take effect.

The points may not appear to increase but spending them will not decrease them anymore and you can buy skills as you like.