I am using a range generate node to expand frames and eventually render them, the custom option of range generate accepts either a single frame number ie. 1001 or a range ie. 1001-1100, but it does not accept to generate multiple specific frames. I would like to be able to generate frame items which have more complex pattern, something like: 1001,1003,1004,1006-1011,1020-1030x2, etc..
can you please indicate me the way to achieve a more customizable range generation? is any specific node or a specific syntax for this?