Two approaches to "Paste Special" with jsl.
dt = Current Data Table();
// 1. Make a copy without formulas (and keep original table)
dt << Subset(Copy formula(0), All rows, Selected columns only(0));
// 2. loop through columns and delete any formulas
cols = dt << get column names();
For(i = 1, i <= N Col(dt), i++,
cols[i] << delete property(formula)
);