DPlot

I have one x and multi y columns (x, y1,y2,y3,...), can I specify which y I use to plot the curve rather than remove some curves afterward? Similar question exists for 3D data (x,y, z1, z2, z3,...)。

Will Dplot have the ability to draw multi-panel plot, I mean, e.g., 2X2, 3X3 plots in one frame?

Thanks.

I have one x and multi y columns (x, y1,y2,y3,...), can I specify which y I use to plot the curve rather than remove some curves afterward? Similar question exists for 3D data (x,y, z1, z2, z3,...)

Yes and yes. Check the "Pick Columns to Plot" box on the Open dialog.

Will Dplot have the ability to draw multi-panel plot, I mean, e.g., 2X2, 3X3 plots in one frame?

Within a window in the application? No. For prints, yes - that's been in there for a while. Click the "Multiple" button to print multiple documents on the same page.