idea: get rid of the lock 1/2 option in processing mode

[flip]

As detailed in SynchronizationOfProcessingOptions?, the lock 1/2 option governs only three of its sixteen siblings. This is unintuitive to me, although it probably would be less so to scientist. Nevertheless, I suspect some confusion arises over this in Vespa.

If we get rid of the lock 1/2 option, the disadvantage is that users will have to manually alter flip, chop and pivot for both spectra. The advantages are as follows --

• A potential source of confusion would be removed
• The screen would be slightly less cluttered
• We would have less code to test & maintain
• We would have one fewer feature to document

[flip]

Idea abandoned; it turns out that my observations of Vespa were based on buggy behavior in that application. Lock 1/2 (now called sync 1/2) doesn't affect just 3 of 16 options; it affects a lot more than that.