Unwanted input in the sequence.

Hey, Thanks for creating this great tool. I have observed few issues with the tool, 1. in the sequence view when I am trying to add a primer while naming the primer the input is also getting added to the sequence, can you add a feature where we can freeze the sequence to read only mode etc... 2. I do not find an option to mark a primer sequence as reverse. 3. Some times the text (sequence) displayed do not wrap around. During adding primers.