dynamic - how to use InputField function within the manipulate function

I am trying to make a demonstration that can take in a matrix and create a vector field. Currently I have the demonstration all functioning but to define the matrix it uses sliders. I know they cannot be used to to define strings within manipulate but numbers can. if possible it would be nice to be able to put the inputfields in a 2x2 grid. currently I have:

Manipulate[value[a, b, c, d, e, f, g, h, i],
 Style["Matrix values", 12, Bold],
 {a, -10, 10, 1},
 {b, -10, 10, 1},

 {c, -10, 10, 1},
 {d, -10, 10, 1},
 {{e, -10, "x-min"}, -20, 0, 1},
 {{f, 10, "x-max"}, 0, 20, 1},
 {{g, -10, "y-min"}, -20, 0, 1},
 {{h, 10, "y-max"}, 0, 20, 1},
 {{i, 5, "Solutions"}, 0, 50, 1}]

I would like a,b,c,d to be input boxes so I can put in a 2x2 matrix. If anyone could help that would be great. I think it would use InputField Function and the Dynamic function. THANKS!!!

Ok, so I have figured one big thing out. instead of:

{a,-10,10,1}

(this defines a slider of range -10 to 10 with a step of 1) replace the numbers with InputField

{a,InputField}

and then you can replace a with different names and a value seen on my e-i variables I still can't find out how to make it look like a 2x2 matrix.

a b

c d

instead of a

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