Add shell layer selection #2101

Job	Run time
Style Check	42s
tests (3.9, windows-latest)	4m 25s
tests (3.9, ubuntu-latest)	4m 33s
debug	1s
tests (3.10, windows-latest)	4m 26s
tests (3.10, ubuntu-latest)	3m 13s
Retro-compatibility (3.10, windows-latest, 251)	4m 27s
tests (3.11, windows-latest)	4m 25s
Retro-compatibility (3.10, windows-latest, 242)	4m 25s
tests (3.11, ubuntu-latest)	4m 32s
Retro-compatibility (3.10, windows-latest, 241)	4m 24s
Retro-compatibility (3.10, windows-latest, 232)	4m 25s
Retro-compatibility (3.10, windows-latest, 231)	4m 24s
Retro-compatibility (3.10, windows-latest, 222)	4m 25s
Retro-compatibility (3.10, ubuntu-latest, 251)	4m 33s
Retro-compatibility (3.10, ubuntu-latest, 242)	4m 34s
Retro-compatibility (3.10, ubuntu-latest, 241)	4m 34s
Retro-compatibility (3.10, ubuntu-latest, 232)	4m 32s
Retro-compatibility (3.10, ubuntu-latest, 231)	4m 33s
Retro-compatibility (3.10, ubuntu-latest, 222)	4m 32s
docs / Check doc style	19s
docs / Documentation	4m 21s
examples / Setup	1s
examples / Run Examples (3.10, windows-latest)	2m 47s
examples / Run Examples (3.10, ubuntu-latest)	2m 3s
upload-development-docs	1s
	1h 29m 37s

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