Originally Posted by: IK0CHU 
Hi Alan,
The field of two characters that you created with LOTW user in the mainlog window, you will fulfill with "Y" if the CALL inserted with a TAB in the mask will result in users LOTW membership, otherwise remain empty.
The LOTW membership list must be periodically updated with the procedure Tools / Internet / Import Users LOTW membership list.
You do not have to do anything in the COPY FROM TABLE PREFIX folder at least for what we're talking about.
Here is operating normally, let me know.
73's de IKØCHU Mauro
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Mauro thanks for hanging in with me....I got it!!
You shouldn't do any of this if you haven't already read the appropriate sections of the manual and have become familiar with adding userfields to the log form. Practice with a backed up copy of your log form.
This is far from a complete guide but the key points are covered.
Rough steps are something like:
Make sure you have saved a copy of your log form and have backed up your log before trying this.
Get the LOTW membership list downloaded in the membership list window.
Get the Membership window working so you see LOTW membership in that window when you type a call in the log form.
Create the LOTW MEMBER userfield with it set to Logical and then go to the membership tab and click Membership.
Click on the membership form button and bring up that window.
Click on the list LOTW USER in the right navigate to list area.
You need to see your userfield in the upper left greyed out. This is key!
The heavy lifting is done.
Now just add the userfield to your log form and when you type in a call and hit tab, if that call is on the LOTW USER list the tick box will get a check mark in it as Mauro said.
Don't forget you need to close your log form and re-open it and then make a new callsign entry that is a known LOTW user to test it.
Working perfectly here.
The key is to get your member list to look like the screenshot attached in this post.
