$
\b{\lmir_4}
\left(\!\! \raisebox{.2cm}{
\pipeDreamBiColor{blue, dashed}{red}{black}{
	{n,n,\b{6},\b{5},\b{7},\b{4},\r{2},\r{1},\r{3}},
	{n,e/b/r,c/r/l,c/r/l,c/r/l,c/r/l,e/r/r,e/r/r,e/r/b},
	{\r{1},c/r/r,c/r/l,c/r/l,c/r/l,c/r/l,e/r/r,e/r/b},
	{\r{2},e/r/l,c/l/l,e/l/r,c/r/l,c/r/l,e/r/b},
	{\r{3},c/r/l,c/r/l,e/r/l,c/l/l,e/l/b},
	{\b{4},c/l/l,c/l/l,e/l/l,e/l/b},
	{\b{5},e/l/l,e/l/l,e/l/b},
	{\b{6},e/l/l,e/l/b},
	{\b{7},e/l/b},
}
}\right)
%=
%\pipeDreamBiColor{blue, dashed}{red}{black}{
%	{n,n,\b{6},\b{5},\b{7},\b{4}},
%	{n,e/b/n,v/r/l,v/r/l,v/r/l,v/r/l},
%	{\b{\Bigg\uparrow},n,v/r/l,v/r/l,v/r/l,v/r/l},
%	{n,e/n/l,c/l/l,e/l/n,v/r/l,v/r/l},
%	{n,v/r/l,v/r/l,e/n/l,c/l/l,e/l/b},
%	{\b{4},c/l/l,c/l/l,e/l/l,e/l/b},
%	{\b{5},e/l/l,e/l/l,e/l/b},
%	{\b{6},e/l/l,e/l/b},
%	{\b{7},e/l/b},
%}
=
\pipeDreamMonoColor{blue, dashed}{black}{
	{n,n,\b{3},\b{2},\b{4},\b{1}},
	{n,t,c,e,c,b},
	{\b{1},c,c,e,b},
	{\b{2},e,e,b},
	{\b{3},e,b},
	{\b{4},b},
}
$