I didn't either until I clicked on the down button and they popped up.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	2	nsubj	2:nsubj	_
2-3	didn't	_	_	_	_	_	_	_	_
2	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	n't	not	PART	RB	_	2	advmod	2:advmod	_
4	either	either	ADV	RB	_	2	advmod	2:advmod	_
5	until	until	SCONJ	IN	_	7	mark	7:mark	_
6	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	7	nsubj	7:nsubj	_
7	clicked	click	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	2	advcl	2:advcl:until	_
8	on	on	ADP	IN	_	11	case	11:case	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	_
10	down	down	NOUN	NN	Number=Sing	11	compound	11:compound	_
11	button	button	NOUN	NN	Number=Sing	7	obl	7:obl:on	_
12	and	and	CCONJ	CC	_	14	cc	14:cc	_
13	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	14	nsubj	14:nsubj	_
14	popped	pop	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	7	conj	4:advcl:until|7:conj:and	_
15	up	up	ADP	RP	_	14	compound:prt	14:compound:prt	SpaceAfter=No
16	.	.	PUNCT	.	_	2	punct	2:punct	_
