...you can type your response in Word immediately, and then, copy/paste to the Board.
***bel, thank you for the suggestion, which however still involves a whole lot of extra folderol compared to Google's "Check".  By the way, in the meantime I discovered how to restore the original "Check", obviating the need for splitting your screen and all the additional keystrokes that entails:
***What had happened, at the urging of Bill Gates Google had stuffed it into a catchall in order to make life just a little more difficult by requiring three keystrokes just to activate it.  What you have to do, is make more room at the top by providing yourself an additional toolbar, whereupon the original one-click "Check" function comes back
***Of course bel you knew that but the trick might conceivably prove useful to some old codger like me on the brink of senility, who is also overwhelmed by the digital world.  Anyone wishing to discuss further such matters, I am 
dalehileman@verizon.net and don't care who knows it   
You will have to press the "reply" button in the board, but you have to do that whether you type directly here or if you copy/paste.
***bel, thank you also for that tip, but I knew about it and don't like it very well.  When you click on "Reply" all the foregoing followups disappear, becoming unavailable for reference whilst composing one's own.  Bill's minions spent an entire month thinking up this single frustration 
I'm not quite sure what all the other steps you have are.
***I have to sheepishly admit that I had expanded a couple of the operations into additional steps, in order to show how tedious the entire process can be if you don't know all the rules  
The way my Word programme is set up, it automatically underlines any word that is misspelled in red and anything it thinks is grammatically incorrect in green. You have the choice of changing it or not...no button pressing required.
***Yes, I knew about it and have used it extensively for years.  Incidentally the novice may be interested to learn that after his file has reached a certain length, at regular intervals when Bill decides you have made too many mistakes, he petulantly withdraws the function, deleting all the wiggly lines where he had detected an "error"
***Much to Bill's chagrin, I have learned how to restore them, through a routine requiring, however, 18 keystrokes.  Subsequently I recorded a macro for the purpose, and would be happy to share it with anyone experiencing the same difficulty.   Contact me
Or
You can throw caution to the wind, type directly, and if you miss any spelling errors, well, tough noogies, nitpickers be damn, cause will it really matter when we're all dead and gone.
***Bel, a most profound observation indeed.  I have maintained for the longest time that life is not so serious as one might assume from the outpourings of mutual hostility characteristic of so many boards
***Incidentally, for the novice who doesn't comprehend all the intricacies, if Bill thinks you are taking too long whilst composing a followup, he will gratuitously and without warning delete your entire composition.  I can just picture him leaning back in his richly upholstered armchair, laughing uproariously
***Again, for the novice, it thus becomes necessary every so often (say, after each paragraph) to highlight and Copy your entire followup.  Another approach I often use is simply to Submit it at regular intervals, performing an Edit whenever you wish to continue or to make a correction
***I trust at least some of this will be of use to the beginner