[PyMOL] Question Regarding Timeline Python API Availability in Open-Source PyMOL

[Martin U. <mar...@st...>]

Dear PyMOL Community,

I am exploring the Timeline Python API as described on the PyMOL Wiki 
(TimelinePythonAPI 
<https://pymolwiki.org/index.php/Timeline_Python_API>). However, when I 
attempt to use |timeline_add_composition()|, I encounter the following 
error:

/AttributeError: module 'pymol.cmd' has no attribute 
'timeline_add_composition'/

To investigate further, I tried both the prebuilt wheel file 
|pymol-3.1.0a0-cp311-cp311-win_amd64.whl| from the GitHub repository 
(pymol-open-source-wheels 
<https://github.com/cgohlke/pymol-open-source-wheels>) and a build from 
source using the commit |PYMOL-4365: Filter gizmo and selections from 
thumbnails and exports|. Unfortunately, both approaches resulted in the 
same error.

Could someone clarify whether this API is available in the open-source 
version of PyMOL or if it is part of the incentive version?

Thank you for your time and assistance.

Best regards,
Martin