Field symbols

Hi experts,

I have defined on field symbol.

field-symbol: <fs> type standard table,

<fs1> type standard table.

then i am creating one dynamic internal table.

then i am assigning ref. of that dynamic internal table to <fs>.

assign dyn_ref->* to <fs>.

Now i want to have one more field symbol of same dynamic internal table.

assign fyn_ref* to <fs1>.

then i am reading a file using gui_upload into <fs>.

Now the problem is when fs <fs> gets filled from gui_upload, <fs1> also gets filled automatically.

when i use clear <fs1> , both the field symbols gets cleared.

So is i want one more field symbol <fs1> like <fs>. Please send some solution for this.

regards,

Ashish Gupta