I am running several test commands in a row and I would like to save these results and combine them later in a table.

However, I noticed that I cannot save the results from the test; is there a way to save the outputs and to combine them thereafter?

HTML Code:
// select the estimation window (1,3,5)
// Window with 1 day
test [top_regression1_mean]d_e1_1 = [bottom_regression1_mean]d_e1_1
estimates store Event1_1
test [top_regression1_mean]d_e2_1 = [bottom_regression1_mean]d_e2_1
estimates store Event2_1
test [top_regression1_mean]d_e3_1 = [bottom_regression1_mean]d_e3_1
estimates store Event3_1
test [top_regression1_mean]d_e4_1 = [bottom_regression1_mean]d_e4_1
estimates store Event4_1
test [top_regression1_mean]d_e5_1 = [bottom_regression1_mean]d_e5_1
estimates store Event5_1
test [top_regression1_mean]d_e6_1 = [bottom_regression1_mean]d_e6_1
estimates store Event6_1
test [top_regression1_mean]d_e7_1 = [bottom_regression1_mean]d_e7_1
estimates store Event7_1
test [top_regression1_mean]d_e8_1 = [bottom_regression1_mean]d_e8_1
estimates store Event8_1
test [top_regression1_mean]d_e9_1 = [bottom_regression1_mean]d_e9_1
estimates store Event9_1
test [top_regression1_mean]d_e10_1 = [bottom_regression1_mean]d_e10_1
estimates store Event10_1
test [top_regression1_mean]d_e11_1 = [bottom_regression1_mean]d_e11_1
estimates store Event11_1
test [top_regression1_mean]d_e12_1 = [bottom_regression1_mean]d_e12_1
estimates store Event12_1
test [top_regression1_mean]d_e13_1 = [bottom_regression1_mean]d_e13_1
estimates store Event13_1
test [top_regression1_mean]d_e14_1 = [bottom_regression1_mean]d_e14_1
estimates store Event14_1
test [top_regression1_mean]d_e15_1 = [bottom_regression1_mean]d_e15_1
estimates store Event15_1
test [top_regression1_mean]d_e16_1 = [bottom_regression1_mean]d_e16_1
estimates store Event16_1
test [top_regression1_mean]d_e17_1 = [bottom_regression1_mean]d_e17_1
estimates store Event17_1
test [top_regression1_mean]d_e18_1 = [bottom_regression1_mean]d_e18_1
estimates store Event18_1
test [top_regression1_mean]d_e19_1 = [bottom_regression1_mean]d_e19_1
estimates store Event19_1
test ([top_regression1_mean]d_e1_1+[top_regression1_mean]d_e2_1+[top_regression1_mean]d_e3_1+[top_regression1_mean]d_e4_1+[top_regression1_mean]d_e5_1+[top_regression1_mean]d_e6_1+[top_regression1_mean]d_e7_1+[top_regression1_mean]d_e8_1+[top_regression1_mean]d_e9_1+[top_regression1_mean]d_e10_1+[top_regression1_mean]d_e11_1+[top_regression1_mean]d_e12_1+[top_regression1_mean]d_e13_1+[top_regression1_mean]d_e14_1+[top_regression1_mean]d_e15_1+[top_regression1_mean]d_e16_1+[top_regression1_mean]d_e17_1+[top_regression1_mean]d_e18_1+[top_regression1_mean]d_e19_1) = ([bottom_regression1_mean]d_e1_1+[bottom_regression1_mean]d_e2_1+[bottom_regression1_mean]d_e3_1+[bottom_regression1_mean]d_e4_1+[bottom_regression1_mean]d_e5_1+[bottom_regression1_mean]d_e6_1+[bottom_regression1_mean]d_e7_1+[bottom_regression1_mean]d_e8_1+[bottom_regression1_mean]d_e9_1+[bottom_regression1_mean]d_e10_1+[bottom_regression1_mean]d_e11_1+[bottom_regression1_mean]d_e12_1+[bottom_regression1_mean]d_e13_1+[bottom_regression1_mean]d_e14_1+[bottom_regression1_mean]d_e15_1+[bottom_regression1_mean]d_e16_1+[bottom_regression1_mean]d_e17_1+[bottom_regression1_mean]d_e18_1+[bottom_regression1_mean]d_e19_1)
estimates store Events_1 

 esttab   Event1_1  Event2_1  Event3_1  Event4_1  Event5_1  Event6_1  Event7_1  Event8_1  Event9_1  Event10_1  Event11_1  Event12_1  Event13_1  Event14_1  Event15_1  Event16_1  Event17_1  Event18_1  Event19_1 

How can I save the results and tabulate them so that I can export them after that?
Additionally, I am testing if two coefficients from regressions on two different samples (same dummy variable) are the same. Is the wald test appropriate for this?