@A.Acheson
Hi, Thank you for your response to my inquiry but I've managed to find a code that would suit what we need. The code below lets me add them in all of my sheets and I've got the code to delete them also or I can specifically add symbols into my sheet using a form. The form contains buttons of every rule I've got to derive the series of symbols I need.
'----------------START OF iLOGIC CODE-----------------------------------
Sub main
' Set a reference to the drawing document.
' This assumes a drawing document is active.
Dim oDrawDoc As DrawingDocument
oDrawDoc = ThisApplication.ActiveDocument
Dim oSheet As Sheet
oSheet = oDrawDoc.ActiveSheet
' Obtain a reference to the desired sketched symbol definition.
Dim oSketchedSymbolDef As SketchedSymbolDefinition
oSketchedSymbolDef = oDrawDoc.SketchedSymbolDefinitions.Item("IFA Stamp")
'Check this is a drawing document...
If Not TypeOf ThisDoc.Document Is DrawingDocument Then
MessageBox.Show("This rule will only run on a drawing", _
"Realm", MessageBoxButtons.OK, MessageBoxIcon.Information)
'Exit sub if not a drawing document
Exit Sub
End If
'Loop through sheets
For Each oSheet In oDrawDoc.Sheets
'Loop through each symbol
'For Each oSymbol In oSheet.SketchedSymbols
'look for the symbol by name
Dim oTG As TransientGeometry
oTG = ThisApplication.TransientGeometry
' Add an instance of the sketched symbol definition to the sheet.
' Rotate the instance by 45 degrees and scale by .75 when adding.
' The symbol will be inserted at (0,0) on the sheet. Since the
' start point of the line was marked as the insertion point, the
' start point should end up at (0,0).
Dim oSketchedSymbol As SketchedSymbol
oSketchedSymbol = oSheet.SketchedSymbols.Add(oSketchedSymbolDef, oTG.CreatePoint2d(9, 54.5), 0, 1, sPromptStrings)
Next
End Sub
'--------------------END OF iLOGIC CODE-----------------------------------
The code below can delete the symbol in all of the sheet.
'----------------START OF iLOGIC CODE-----------------------------------
Sub main
' Set a reference to the drawing document.
' This assumes a drawing document is active.
Dim oDrawDoc As DrawingDocument
oDrawDoc = ThisApplication.ActiveDocument
Dim oSheet As Sheet
oSheet = oDrawDoc.ActiveSheet
'Check this is a drawing document...
If Not TypeOf ThisDoc.Document Is DrawingDocument Then
MessageBox.Show("This rule will only run on a drawing", _
"Realm", MessageBoxButtons.OK, MessageBoxIcon.Information)
'Exit sub if not a drawing document
Exit Sub
End If
'Loop through sheets
For Each oSheet In oDrawDoc.Sheets
'Loop through each symbol
For Each oSymbol In oSheet.SketchedSymbols
'look for the symbol by name
If oSymbol.Name = "IFA Stamp" Then
oSymbol.Delete
End If
Next
Next
End Sub
'--------------------END OF iLOGIC CODE----------------------------------
And this one will add the symbol to the current sheet.
'----------------START OF iLOGIC CODE-----------------------------------
'Sub Main()
' Set a reference to the drawing document.
' This assumes a drawing document is active.
Dim oDrawDoc As DrawingDocument = ThisDrawing.Document
' Obtain a reference to the desired sketched symbol definition.
Dim oSketchedSymbolDef As SketchedSymbolDefinition _
= oDrawDoc.SketchedSymbolDefinitions.Item("IFA Stamp")
Dim oSheet As Sheet = oDrawDoc.ActiveSheet
'create insertion point, coordinates - in cm !
Dim oTG As TransientGeometry = ThisApplication.TransientGeometry
Dim oInsertionPoint As Point2d = oTG.CreatePoint2d(9, 54.5)
' Add an instance of the sketched symbol definition to the sheet.
' Rotate angle = 0 radians,
' scale = 1 when adding
' no prompt text
Dim oSketchedSymbol As SketchedSymbol _
= oSheet.SketchedSymbols.Add( _
oSketchedSymbolDef, _
oInsertionPoint, _
0, 1, Nothing)
'End Sub
'--------------------END OF iLOGIC CODE-----------------------------------
Screenshot of my form below 😄

The following codes let me customize their orientation in the drawings sheets so it's automated and I don't need to reorient it's position whenever I insert a symbol.
I would like to share it and hopefully it can be helpful to others too.