How to delet reading list items

Question

I've noticed I can add items to my reading list, I don't know how to delete spacific items from the list.

Answer 1

First of all thank you both.
Now I still have some problems..
On the trigger WHEN-NEW-FORM-INSTANCE I wrote this code:
DECLARE
rg_fakultet RECORDGROUP;
rg_fsmer VARCHAR2(20) := 'F_IME';
flist_ID Item := Find_Item('SMERI.F_IME');
nDummy NUMBER;
BEGIN
rg_fakultet := Find_Group(rg_fsmer);
IF NOT Id_Null(rg_fakultet) THEN
Delete_Group(rg_fakultet);
END IF;
rg_fakultet := CREATE_GROUP_FROM_QUERY(rg_fsmer,'SELECT F_IME, TO_CHAR(F_IME) FROM FAKULTETE');
Clear_List(flist_ID);
nDummy := Populate_Group(rg_fakultet);
Populate_List('SMERI.F_IME',rg_fakultet);
END;
And it works more or less
But, on the F_ime I wrote on trigger WHEN-LIST-CHANGED this code:
DECLARE
rg_smer RECORDGROUP;
rg_ssmer VARCHAR2(20) := 'SMER';
slist_ID Item := Find_Item('SMERI.SMER');
nDummy NUMBER;
BEGIN
rg_smer := Find_Group(rg_ssmer);
IF NOT Id_Null(rg_smer) THEN
Delete_Group(rg_smer);
END IF;
rg_smer := CREATE_GROUP_FROM_QUERY(rg_ssmer,'SELECT SMER, TO_CHAR(SMER) FROM SMERI');
Clear_List(slist_ID);
nDummy := Populate_Group(rg_smer);
Populate_List('SMERI.SMER',rg_smer);
END;
And it doesn't work, there is nothing in the item SMER.
Can you tell me what code to write for the item SMER?
Thanks!