Please describe the problem:
I don't know if it's by design, but the way the solver works makes its use impractical. If you have, for example, a big spreadsheet whit a lot of values and formulas, and want to use the solver to optmimize a problem you must enter all parameters at the same time. If you need to close the solver to return to the spreadsheet to modify values, all the parameters you previously entered are lost. For small optimizations with a few constraints, even if it is very annoying, it is acceptable. But say you have 10 or 20 constraints : it is not acceptable because you really lose a lot of time to re-enter them. The solver should remember what the parameters the user entered and offer a button to re-initialize it if it is needed.

Steps to reproduce:
1. Create a new document, enter values for a problem you want to solve.
2. Call the solver, enter data : changing cells, target, constraints.
3. Close the window of the solver. Re-open it : all the parameters have disappeared.


Actual results:
All the data / parameters previously entered in the solver are lost. You must re-enter them.

Expected results:
When the solver is closed, having made the omptimization or not, the parameters entered by the user should still be available.

Does this happen every time?
Yes.

Other information:
n/a