Rename all columns in table at once

[GS2]

Using SAS 9.4

I have a data set that has multiple time points per person and each time point is a separate row and I would like to create a wide data set from this (i.e. all time points on 1 row for each person) so I can compare the dates. Is there an efficient to rename all variables in a data set to include "_1", "_2" etc. at the end of each variable? Thank you 

[PaigeMiller]

PROC TRANSPOSE