Is it possible to had one (1) part number and multiple schematic symbols assign to it
Yes. When editing the part number record with Parts Database Manager, enter the symbol names into the Schematic_Symbol field separated by commas with no spaces. Use Show Differences to update existing projects if necessary.
The part number will then match the automatic filter applied in the Select Part Number dialog when assigning part numbers to any of the symbols you've assigned, and if using Insert Symbol By Part Number you will be able to select which symbol to place.
This works however the additional symbol names need to be typed or pasted in manually. You cannot use the three dot selector to select addition symbols.