CK-12 contents missing in the Kolibri Channel

The CK-12 Foundation has some contents that are not available in “CK-12 Kolibri” channel. One example is shown here at Link:

https://flexbooks.ck12.org/cbook/ck-12-middle-school-physical-science-flexbook-2.0/section/3.1/primary/lesson/atoms-ms-ps/?referrer=special

Here we see an animation of the ATOM, which is not available in Kolibri Channel. How can we bring in such contents into Kolibri? Moreover, this animation cannot be brought into Kolibri Studio because it is in 'htm’l, instead of ‘html5’ format.

Hey there k2edutech,

Currently we are unable to update or integrate new CK-12 content due to a change in the CK-12 terms of use.

Best regards,
Jacob