Yes, you can enter up to ten datasets yourself. You are therefore not obliged to request current lockchart data.

If you have used the ten datasets, current lockchart data must be reimported and synchronised. You will be asked to merge the manually entered datasets with those provided. If all manual data has been synchronised, you can then enter up to ten more datasets.

This process also ensures that you always have the latest lockchart and full and correct data.