Pulling observations from two workfiles into one

[fi_charles]

I have two workfiles(FILE1.wf1 and FILE2.wf1) and each one has about 100 identical variables (different values). I was trying to concatenate these two files, i.e. from 1990Q1 to 2000Q4 using the data from FILE1.wf1 and from 2001Q1 to 2014Q4 using the data from FILE2.wf1. I've been trying several ways for days and still cannot solve it. Eviews either give me FILE1 or FILE2 results. Please help! Thanks in advance.

[EViews Gareth]

Proc->append to current page

[fi_charles]

Thanks, but I would like to know how to write the code instead of operating it through the proc> Any other thought?

[EViews Gareth]

Pageappend