Hi Juli,
In a standard module (I believe that Module 1 is available), place the following codes:-
As previously explained, in the sheet module, place the following code:-
We've now taken care of the problem of having two Worksheet_Change events in the sheet module.
I've attached your sample file with the codes implemented.
You'll notice that, in the sample, I've created a few drop downs with data validation which are shaded yellow. In the drop downs, I have placed the numbers 1 - 6 ( because I was too lazy to place the correct aircraft IDs in them) which you can see I've referenced in the codes above. I'll leave it to you to place the correct IDs in the drop downs and to complete the rest of them for the remainder of the data set. As your actual IDs are alpha numeric, please remember to place quotation marks around each ID otherwise you'll find that nothing happens.
Be careful where you place he drop downs as this will affect the various offsets in the codes. I suggest that you follow the pattern that I started as this will leave the offsets unaffected.
Lets hope that this is at least close to what you were hoping to achieve!
Please remember to again test these codes in a copy of your workbook.
I hope that this helps.
Cheerio,
vcoolio.
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