Encase anyone didn't know you can prepare up to 5 A1 Spirit bombs for release, similarly to missiles (which the A1 also has (right click to select missiles).
Enter bombing mode (default middle mouse), set your target with short hold T (if using assist), then press G to cycle amount deisred amount (up to 5), then left click to release (with approx. 5s delay between each release automatically.)
Referral code: STAR-YFF5-WJKN (registering with this referral code, you receive 5,000 UEC ingame).