A question on hydrostatic fluid element input file modification

[dariushtari99]

Hi,I want to model a pressurised container using Shell elements for the wall and Hydrostatic fluid elements for the fluid inside.I think i should modify the input file to generate fluid elements.right?but the problem is that the wall consists of
several parts.I have no idea how to start the modification!Should i change the number of nodes of the parts to make only one
set of node and element data instead of having several for each part?I totaly confused.
And also i wanted to know if there is possible to model fluides in Abaqus Explicit using hydro static elements?
Thank you
Dariush