"Configure this device" with 2 kindles problem

[fogice]

I have two kindles registered to my name, a Paperwhite and a Voyage. I want to send KFX files to the Voyage and AZW3 files to the Paperwhite. However, when I go to "Configure this device" and set the "available formats and order" for my Voyage, it also changes the preferences for my Paperwhite, and vice versa.

Is this a bug in Calibre? Or is it by design? Is there a way for me to make this automatically work, or will I have to manually flip the preferences every time I plug in the other device?

[theducks]

Originally Posted by fogice

I have two kindles registered to my name, a Paperwhite and a Voyage. I want to send KFX files to the Voyage and AZW3 files to the Paperwhite. However, when I go to "Configure this device" and set the "available formats and order" for my Voyage, it also changes the preferences for my Paperwhite, and vice versa.

Is this a bug in Calibre? Or is it by design? Is there a way for me to make this automatically work, or will I have to manually flip the preferences every time I plug in the other device?

Not really. The 2 devices just happen to use the same driver. Back when the driver system was envisioned, having 2 models sharing a driver with way different format requirement was not even concieved.
I am a bit puzzled though. Don't both those models do support KFX?

Alternate workaround (boy did Kovid cover all the bases )
Right click the book (that does not send the preferred format)
Send Specific Format to <device optional storage location>: <choose format>

[fogice]

OK, thank you. I'll just use "send specific format" all the time so I don't get it backwards.

Originally Posted by theducks

Don't both those models do support KFX?

It's an older model Paperwhite that doesn't do KFX.