withKnobs:tweaks static values organized in groups

Build 7037 on pull/5444
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BaselineBuild 6902 on pull/5444
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LatestBuild 7037 on pull/5444
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Build 7037f159909
Current build. There are unaccepted changes, so build 6902 is still the baseline.
Build 69021ac61b7 current baseline
Accepted by Norbert de Langen.
Build 5954810e24e
Accepted by Norbert de Langen.
Build 31084dbc6e2
Accepted by Igor.
Build 308041300e9
Accepted by Norbert de Langen.
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