Vezér 1.6 added support for sending and recording 14-bit MIDI CC messages.
14-bit MIDI is the Continuous Controller feature of the MIDI specification, where any of the first 32 controls (MSB - CC 0-31) can be optionally paired with a control offset 32 higher (LSB - CC 32-63) and using them as coarse and fine parameters of a 14-bit value, and this way allow using 16,384 possible values instead of 127.
This means, the 14-bit option is only available when you are using one of the first 32 CCs (CC 0-31).
Recording of incoming 14bit MIDI CC data is also possible. However its impossible the detect if a CC values is 14 bit - since a 14bit CC no more than 2 normal CC values merged together - so you need to mark the starting CC (the MSB) to excepted as a 14 bit values in Vezér's MIDI Record Filtering Preferences. Obviously this option is only available for the first 32 controllers (CC 0-31).
Exporting to XML
14bit MIDI Tracks writing their CC number in the exported XML with the "cc-msb" and "cc-lsb" keys.