Use of inline arrays to model arrays of structs

public struct CHRDATA {
    public uint hp;
    public uint mp; // ... hundreds more fields
}
public struct SAVEDATA {
    public CHRDATA chr1;
    public CHRDATA chr2;   
    public CHRDATA chr3; // ... tens more entries
}

[InlineArray(80)]
public struct CHRDATA_ARRAY {
    private CHRDATA _c;
}
public struct SAVEDATA {
    public CHRDATA_ARRAY chrs;
}