Import from mainframe

1. Save credentials under Global Settings → Mainframe (import maps), then Test connection.
2. Open Import → Import from mainframe with an operation selected.
3. Search datasets, open members, assign roles (BMS / COPYBOOK or MFS), and add them (maximum 50).
4. On CICS, you can optionally add COBOL programs and set a target PDS for twins (Prepare COBOL for OLSCREENER).
5. Click Preview N member(s) to hand off into Import maps, then Import.

RSE needs host, user, and a saved password (default port 6800). Use JZOS hides host/port and needs user plus a saved password on a USS IBM Java install.

OL_HTTPS_TRUST_ALL applies to RSE HTTPS, not JZOS. JZOS Test authenticates the user; catalog and member reads run as the USS process identity.