If you want to attach a screen copy picture to text message, you can tap the attach icon and choose it from your SD card gallery. Now, You have a easy and quick way to do attach the screen copy from clipboard.
1. From within an active message, tap the text input field to reveal the on-screen keyboard.
2. Touch and hold to select from other input methods.
3. Tap Clipboard to launch the device’s clipboard area from where you can select a current clipboard item to place in your current message.
Is it easy?
This is the default samsung on-screen keypad layouts & icons for those who are not familiar with the Samsung virtual keyboard.