Capital gains starting from a given date

In 2023 I changed residency from The Netherlands to Andorra.

My accountant has told me that Andorra capital gains are only due on gains made from the point I became a tax resident, as a CGT has already been paid in NL via their box 3 taxation system.

As such, I need to calculate capital gains from a given date, even if the assets were purchased earlier.

Does Koinly support this? If not, is there a way to manually modify data imported via integrations?