Appending REUSE_ALV_HIERSEQ_LIST_DISPLAY

Hai all,

I am displaying some text like material details for 5 lines ,then i am displaying the header and item of that material using REUSE_ALV_HIERSEQ_LIST_DISPLAY.

for a specific material which is given as a parameter.

Now i am going to replace the Material (Parameter) to RANGE of materials (select-options)..So i need to..call the REUSE_ALV_HIERSEQ_LIST_DISPLAY number of times...how can this be achieved .............I am using F.M . and i dont want OOPS ...Do i need to set any Layout or will it get automtically appended.

Regards,

Dev