If you are using the Fit Y by X, Bivariate Platform, you can easily output all of the slopes into a single data table for all of regressions.
Simply right click on one of the Parameter Estimates tables, and select Make Combined Data Table.
The "Make Combined Data Table" is a system wide JMP feature, so if you are using the Fit Model platform to get your slopes, you can use the same method to get the estimates into a single data table from which you can cop/paste from.
Jim