Yup I’ve noticed, you need to use node from Dynablaster package, titleblock from sheet, right after group node. Sorry for tone of messages, but I’m on a bus heading home 
we cannot do by this group?
Sadly no, cause you need titleblock instances, which you can get with Dynablaster, plus you already have all the data you need for the parameter
we got the instances from the title block refer below snapshot
that A , B , C & D are the instance parameters from the title block
Ok but then you need to change the approach. Cause u still need to group those titleblocks via sheetname.
By instances I meant element instance, not parameter instance 
how to do that 
You cant, cause titleblock doesn’t have host or parameter that tells you that. That’s why my suggestion was titleblockfromsheet (Dynablaster package)
i will download the package now
Let me know how it went. I’m 10 min from home, so I can use my PC.
But now i will start to my home and reach in one hour. i will do that in home
Catch you in one hour Jan 
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You could start with the title blocks and get the sheet name from there. Then your values would already be aligned with your title block instances when you’re ready to set values.
yup i’ve just noticed that :).
Try the other graph.
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There are Sheets and Titleblock categories, two different objects, Sheet Name is the connection in the database
You probably have sheet(s), and that is creating a problem in custom node.
Just change it to sheet.
Otherwise there is one more package that has the same node, its called Rhythm.
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List structure is the problem. You could use lacing, but I would suggest not using a custom node if you don’t have to.