I did not complete all operations of FLTV. You can find what is not implemented from here. There also exists urget implemented menus where I do not satisfy. My plan lists below, somebody implements these operations or I will...

• Not implemented menus
• New

creates another FLTV window. BUT it cannot be implemented since it's used some static class variables.
• Save

saves current conditions to one file. There is a data structure problem of FLTV. If you can save the current conditions, you show it easily on your presentation and collect several str-files to one files. Now I prepare a Save each menu which gives you overwrite input files.
• Preference

gives you a FLTV default values control.
• Undo

this operation is very important... I guess. BUT the implementation is not easy.
• Merge

I want to compilte this operation. It is different from Synthesize menu, see below.
• Ruler

we do not know elapse times(cycles) of each event. Ruler or somthing is needed as a scale.

• Unsatisfying menus
• Synthesize

this pulse height is related on level. BUT the algorithm of synthesise is bad. I hope there is better idea somewhere...
• Zoom

there is fixed zooming values, it is not sophisticated.