Key Map dialog improvements. #2751

Job	Run time
Check for Max SDK	1s
linux-x64-internal-release	8m 58s
macos-arm64-internal-release	8m 1s
linux-x64-internal-debug	8m 10s
macos-arm64-internal-debug	7m 29s
linux-x64-external-release	7m 48s
macos-arm64-external-release	7m 58s
macos-x64-internal-release	12m 20s
macos-x64-internal-debug	10m 41s
macos-x64-external-release	14m 47s
windows-x86-internal-release	16m 22s
maxplugin-${{ matrix.cfg.str }}-${{ matrix.cfg.sdk-version }}	0s
windows-x86-internal-debug	14m 58s
windows-x86-external-release	15m 2s
windows-x64-internal-release	12m 23s
windows-x64-internal-debug	15m 34s
windows-x64-external-release	13m 51s
	2h 54m 23s

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