New stock change window not appearing in Transaction Selection screen

SOLVED

Hello,

I've created a custom window for stock change (GESSCS) called ZSC (a clone of ALL with some adjustments), but it is not appearing in the transaction selection screen when I try to enter the object:

The new window screen setup is identical to ALL except for the transaction name, and the tab which I've also cloned into a new one. - WT03ZSC1 instead of WT03ALL1

What am I missing here?

Thank you,

Zoey