Use a readonly column and set the SAP icon id as value, e.g. "@5C@". You may also add a tooltip using the \Q-notation, e.g. "@5C\QLate delivery@".

Table (3,6) (10,55) name="mat" rows=8" fixedColumns=5
Column "Material" size=10 name="matnr"
Column "Amount" size=10 name="amount"
Column "Unit" size=10 name="unit"
Column "St" size=3 name="status" -readOnly
Column "Deliv.Date" size=10 name="deldt" searchHelp="GuiXT.Date"

// set test values for icon display
Set V[mat.cell.status.1] "@5D@"
Set V[mat.cell.status.2] "@5B@"
Set V[mat.cell.status.3] "@5C\QLate delivery@"

Components
InputAssistant