I go with the 2 key line formation method (1 button moves all 4 alts left/right, 2nd button moves 2 alts further left right).
key1:
xx -- xx
key2:
x--x--x--x
I go with the 2 key line formation method (1 button moves all 4 alts left/right, 2nd button moves 2 alts further left right).
key1:
xx -- xx
key2:
x--x--x--x
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