But if I decide to use VEXTA PK243A1-SG18-C4 Motor I need higher capacity of current.
No, as a matter of fact, you do NOT need higher capacity with that motor.
If you had actually looked at that link, you would see that the "VEXTA PK243A1-SG18-C4" Motor is rated for 0.95 A/phase. So the A4988 driver is a perfect match.