How can I avoid adding the three plus signs, shown, that are not part of my design? What are they called? I'm using Ultiboard.

How can I avoid adding the three plus signs, shown, that are not part of my design? What are they called? I'm using Ultiboard.

| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 11 |
| 2 | Jonathan Scher | 3 |
| 3 | Paul Hupman | 2 |
| 4 | Samarth Jiwarajka | 1 |
| 5 | Engineer | 1 |
| 6 | Ibrahim TKR | 1 |