Actually, the `wbeditentity` API can be used to create multiple claims in a single call. It can also be used to remove multiple claims in a single call. Sadly, it seems that can't be used to both create and delete some claims in a single API request.
== Actual situation ==
If you want to add multiple claims this is the `data` argument:
```
{ "claims": {
"P123": [
{ claim to be added },
{ claim to be added },
],
"P234": [
{ claim to be added },
],
// ecc.
} }
```
If you want to remove multiple claims this is the `data` argument:
```
{ "claims": [
{ id: "ID claim to be removed", remove: 1 },
{ id: "ID claim to be removed", remove: 1 },
// ecc.
] }
```
As you see, there is an inconsistence:
* The first `claims` contains an object indexed by properties that contains an array of claims
* The second `claims` contains directly an array of claims to be removed
My suggestion is to avoid these differences. For example, allowing this format:
```
{ "claims": {
"P123": [
{ claim to be added },
{ claim to be added },
],
"delete": [
{ id: "ID claim to be removed", remove: 1 },
{ id: "ID claim to be removed", remove: 1 },
],
} }
```