how to get detail information from a regression model results in a separate array?

Hello,

I am asking this question as I haven't find an answer yet. Could anybody help me please to learn how to to extract the coefficients values (or other relevant data) from the model results such as: mdl.Coefficients. I am trying to record such values for number of regression models to work on them in another code. An example of what I am lloking for is here:

          Estimate        SE         tStat       pValue  
          _________    _________    _______    __________
    b1     -0.17489     0.025051    -6.9813    2.0592e-07
    b2     -0.47334     0.024024    -19.702    3.7536e-17
    b3    -0.028464    0.0058363     -4.877    4.6488e-05
    b4    -0.023999    0.0072508    -3.3099     0.0027401

If I use mdl.Coefficients (1,2) for instance, this gives me a table like below instead of just the number (0.025051 in this case).

             SE   
          ________
    b1    0.025051

I tried "get" command as well but it didn't work. Also I am wondering how I can clear a part of the regression results. I have a lot of observations that take the whole memory and I need to clear them from the mdl results. (like mdl.VariableInfo, mdl.ObservationInfo, etc.)

Thanks