I have extracted the following code from my legends plots because I need them individually
LineLegend[{Directive[PointSize[0.00694444444444],
AbsoluteThickness[1.6], Black],
Directive[PointSize[0.00694444444444], AbsoluteThickness[1.6],
Black], Directive[PointSize[0.00694444444444],
AbsoluteThickness[1.6], Black],
Directive[PointSize[0.00694444444444], AbsoluteThickness[1.6],
Black], Directive[PointSize[0.00694444444444],
AbsoluteThickness[1.6], Black],
Directive[PointSize[0.00694444444444], AbsoluteThickness[1.6],
Black], Directive[PointSize[0.00694444444444],
AbsoluteThickness[1.6], Black],
Directive[PointSize[0.00694444444444], AbsoluteThickness[1.6],
Black], Directive[PointSize[0.00694444444444],
AbsoluteThickness[1.6], Black],
Directive[PointSize[0.00694444444444], AbsoluteThickness[1.6],
Black]}, {"m=1", "m=1.5", "m=2", "m=3", "m=10", "m=50", "m=207",
"m=400", "m=900", "m=1836"},
LegendMarkers -> {{Graphics[{EdgeForm[None], Disk[{0, 0}]}],
Offset[6.272]}, {Graphics[{EdgeForm[None],
Polygon[{{-1, -1}, {1, -1}, {1, 1}, {-1, 1}}]}],
Offset[6.72]}, {Graphics[{EdgeForm[None],
Polygon[{{0, 1}, {1, 0}, {0, -1}, {-1, 0}}]}],
Offset[8.16]}, {Graphics[{EdgeForm[None],
Polygon[{{0, 1}, {-1, 1 - 3^Rational[1, 2]}, {
1, 1 - 3^Rational[1, 2]}}]}],
Offset[7.6]}, {Graphics[{EdgeForm[None],
Polygon[{{0, -1}, {-1, -1 + 3^Rational[1, 2]}, {
1, -1 + 3^Rational[1, 2]}}]}],
Offset[7.68]}, {Graphics[Circle[{0, 0}]],
Offset[7.168]}, {Graphics[{EdgeForm[Thickness[Medium]],
FaceForm[None],
Line[{{-1, -1}, {1, -1}, {1, 1}, {-1, 1}, {-1, -1}}]}],
Offset[7.168]}, {Graphics[{EdgeForm[Thickness[Medium]],
FaceForm[None],
Line[{{0, 1}, {1, 0}, {0, -1}, {-1, 0}, {0, 1}}]}],
Offset[8.704]}, {Graphics[{EdgeForm[Thickness[Medium]],
FaceForm[None],
Line[{{0, 1}, {-1, 1 - Sqrt[3]}, {1, 1 - Sqrt[3]}, {0, 1}}]}],
Offset[8.192]}, {Graphics[{EdgeForm[Thickness[Medium]],
FaceForm[None],
Line[{{0, -1}, {-1, -1 + Sqrt[3]}, {1, -1 + Sqrt[
3]}, {0, -1}}]}], Offset[8.192]}},
Joined -> {True, True, True, True, True, True, True, True, True,
True}, LegendLayout -> "Row"]
which shows legends as rows, but I want to show all of them in a single row, how can I do that?