Documentation
User guides and keyboard shortcuts reference
User Guide
Complete guide covering all features
Installation Guide
Detailed installation instructions
Keyboard Shortcuts
Terminal Keys
Enter
Submit
F1-F12
PF1-PF12
Shift+F1-F12
PF13-PF24
Escape
PA1 (Attention)
Ctrl+L
Clear
Ctrl+R
Reset
Tab
Next Field
Shift+Tab
Previous Field
Application Keys
Ctrl+N
Connect
Ctrl+Shift+T
New Tab
Ctrl+Shift+Q
Close Tab
Ctrl+Tab
Next Tab/Pane
Ctrl+F
Find
Ctrl+P
Profiles
Ctrl+Shift+K
Shortcuts Editor
Split Screen
Ctrl+\
Horizontal Split
Ctrl+Shift+\
Vertical Split
Ctrl+Tab
Switch Panes
Ctrl+Shift+W
Close Pane
Selection & Clipboard
Ctrl+C
Copy
Ctrl+V
Paste
Alt+Shift+T
Select Text
Alt+Shift+F
Select Field
Alt+Shift+J
Select JCL
Command History
Alt+Up
Previous Command
Alt+Down
Next Command
Connection Profiles
Save and organize your mainframe connections. Each profile stores:
- Host and Port
- SSL/TLS settings
- Terminal Model (2-5)
- LU Name and Code Page
Access via Connection → Profiles or Ctrl+P
File Transfer (IND$FILE)
Sending Files
- Go to TSO READY prompt
- Select Transfer → Send File
- Choose file and dataset name
- Select mode (ASCII/Binary)
Receiving Files
- Go to TSO READY prompt
- Select Transfer → Receive File
- Enter dataset name
- Choose local destination
Licensing
60-day free trial with full functionality.
- Purchase via Help → Purchase License
- Activate via Help → Activate License
- License types: Personal, Professional, Enterprise
Command Line Options
im3270 [options] [host[:port]] --profile <name> Connect using profile --host <hostname> Mainframe hostname --port <port> Port (default: 23) --ssl Use SSL/TLS --model <2-5> Terminal model --help Show help