SnapGene is commercial software to design and simulate cloning. VIB offers paid licenses for this software to all VIB scientists (only accessible from a VIB network or through VPN connection). Check out the VIB software catalog for details about the software and order via https://connect.vib.be/services/snapgene (login required).
SnapGene offers many video tutorials on cloning and on the use of SnapGene. Create a free account on the SnapGene Academy and watch the tutorials.