You can't directly paste data as pointers. A pointer only exists in the context of the FlexSim model and can't be imported from another program. But you can use a simple for-loop to convert the string to a pointer by searching for the object by name. This could be done as part of the Post Import Code if you are using the Excel Import/Export tool, in the reset trigger of the global table or in the script console.
Table table = Table("GlobalTable1");
int nameColumn = 1;
int pointerColumn = 2;
for(int row = 1; row <= table.numRows; row++)
{
table[row][pointerColumn] = Model.find("?" + table[row][nameColumn]);
}
If all the objects are direct subnodes of the model you don't need the "?" in Model.find(). It makes the search recursive, also checking subnodes/subfolders for nodes with the name. But it is a lot slower which might make a difference if the table or model is very large. As you can see I don't overwrite the name data, which might help to spot errors and fix them manually.