how to replace ‘proto_tree_add_text’ for wireshark 2.2

Hello wireshark gurus, I have a simple problem(but quite devastating for me). I am trying to update this dissector from wireshark 1.6 to 2.2 for windows. I have successfully removed all the errors due to change in API, except for one --> proto_tree_add_text. I know it should be replaced by proto_tree_add_xxx. But I couldn't find any way of understanding how to implement the change.I have read the readme files. but I'm unable to attain any success after trying a lot. New functions require some parameter named 'id' eg. proto_tree_add_string(tree, id, tvb, start, length, value_ptr); What is this ID? Could anyone please guide me solving this issue. I'm posting some of the code snippets. Thanks

proto_item *header_item = proto_tree_add_text(cidsifecmd_tree, tvb, CIDSIFE_HEADER_FIRST_BYTE_START, CIDSIFE_HEADER_LENGTH,
        "Header > Protocol Revision: %u, Airframe Manufacturer: %u, Data Length: %u",
        ife_protocol_revision, ife_airframe_manufactor, ife_data_length
);
proto_tree_add_text(command_tree, tvb,  7, 1, "Direct PA:\t\t%s", try_val_to_str(getbits(tvb_get_guint8(tvb, 7), 1, 2), discrete_status_var));
proto_tree_add_text(command_tree, tvb, 7, 1, "Video In Use:\t%s",
try_val_to_str(getbits(tvb_get_guint8(tvb, 7), 3, 2), discrete_status_var)
);
proto_tree_add_text(command_tree, tvb, 5, 10, "Item\tVPA\tNMPA\tAudioType");
for (row = 0; row < 10; row++) {
proto_tree_add_text(command_tree, tvb, 5, 10, "VPA%u\t%s\t%s\t%s",
row + 1,
try_val_to_str(pa_array[row][0], discrete_status_var),
try_val_to_str(pa_array[row][1], discrete_status_var),
try_val_to_str(pa_array[row][2], vpa_audio_type_var)
);
}
proto_tree_add_text(sub_tree, tvb, CIDSIFE_CMD42_FIRSTELEMENT_START + tmp_row * CIDSIFE_CMD42_ELEMENT_LENGTH, CIDSIFE_CMD42_ELEMENT_LENGTH, str);

It also appears once in the header file

#define PROTO_TREE_ADD_HEADER( ife_tree, ife_command, element_start, element_length )                      

proto_item *sub_item = proto_tree_add_text(     

(ife_tree) , tvb, (element_start),     

ife_numberOfElements * (element_length), 

"%s (%u entries)",  

try_val_to_str( (ife_command) , command_name_var), 

ife_numberOfElements       

);      

proto_tree *sub_tree = proto_item_add_subtree(sub_item, ett_cidsifecmd_tree)