Did some more experiments with libraryprefs.xml Depending on your Poser preferences (mine are set to save the current layout) the libraryprefs.xml gets overwritten when you quit Poser. So changing the settings using Python from within Posr does not work, unless you save the changes and then mark the file as read-only. This will also allow for another wish: "freeze" the startup runtime. I tested; it works. Problem is that you can't add a runtime permanently when libraryprefs.xml is read-only. The added runtime will only be present during the current session. It's not possible to hook into the Poser menus and add your own processing, alas. The only applications where it's possible to do so without a sneaky external C program that hooks into Windows itself (at least that I know of) are the MS Office apps and the MS development tools.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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