To copy lines displayed in the document, first select the lines to be copied. This can be done in the following ways:
1. Click on a line and while holding the mouse down, drag up or down to the desired number of lines to select them
2. Use Select All (Cmd+A) menu item to select all lines in the log file
3. To select non-continuous lines, click on a line, then use Cmd+click to select the other lines to be copied.
Once the necessary lines are selected, click on Edit > Copy menu item or use Cmd+C keyboard shortcut to copy the lines in the clipboard.
The copied lines can then be pasted in to another application using that application's Paste action (usually Cmd+P shortcut)