Hi,
I don't think you can go to a topcell if you open from a bottom cell.
For example, suppose I have a design library with cells called MEM_CTRL, ATL & SHIFT
Now, if none of these cells are below each other hierarchically & they all have some INV_XL cells in their lower hierarchy, which is supposed to be considered the top cell if you want to ascend from INV_XL?
You have to open from the top cell, descend and use functions such as schHiReturn() & schHiReturnToTop() to ascend back to the top cell.
Best regards,
I-FAB