And by "textbox," I mean the openended element. Here's the current code for reference:
<expt>
/ subjects = (1 of 2)
/ blocks = [1=ac.test.type60]
</expt>
<expt>
/ subjects = (2 of 2)
/ blocks = [1=ac.test.type150]
</expt>
<data>
/columns=[date, time, build, subject, trialcode, blockcode, blocknum, trialnum, latency, response, pretrialpause,
posttrialpause, trialtimeout, blocktimeout, correct, stimulusitem, stimulusnumber,
display.height, display.width,
script.starttime, script.elapsedtime]
/format=tab
</data>
<instruct>
/windowsize = (80%, 80%)
</instruct>
************************************************************************
blocks
***********************************************************************
<block ac.test.type60>
/preinstructions = (ac.test.type.p1)
/trials=[2,4=ac.test.type60; 1,3=60secondtimer]
/bgstim=(60sec)
</block>
<block ac.test.type150>
/preinstructions = (ac.test.type.p1)
/trials=[2,4=ac.test.type150; 1,3=150secondtimer]
/bgstim=(150sec)
</block>
***********************************************************************
ac.test.type
***********************************************************************
<page ac.test.type.p1>In this task, youâll be racing the clock.^^Weâll give you two passages to retype; when you hit enter, a timer will come up in the upper left-hand corner indicating the number of seconds you have to type the passage.^^Type as much of the passage as you can before the timer runs out.^^If you finish before the timer runs out, please click the "Next" button.</page>
<openended ac.test.type60>
/stimulustimes=[0=ac.test.type60]
/charlimit=2000
/linelength = 80
/timeout=60000
/position = (50%, 80%)
/size = (70%, 40%)
/multiline=true
</openended>
<openended ac.test.type150>
/stimulustimes=[0=ac.test.type150]
/charlimit=2000
/linelength = 80
/timeout=150000
/position = (50%, 80%)
/size = (70%, 40%)
/multiline=true
</openended>
<text ac.test.type60>
/items=ac.test.type60
/position=(50%,20%)
/select=sequence
/size=(69%,10%)
/fontstyle = ("sans-serif", 12pt, false)
/hjustify=left
</text>
<text ac.test.type150>
/items=ac.test.type150
/position=(50%,20%)
/select=sequence
/size=(69%,10%)
/fontstyle = ("sans-serif", 12pt, false)
/hjustify=left
</text>
<item ac.test.type60>
/1="All the sound reasons ever given for conserving other natural resources apply to the conservation of wildlife, and with three-fold power. When a spendthrift squanders his capital it is lost to him and his heirs; yet it goes somewhere else. When a nation allows any one kind of natural resource to be squandered it must suffer a real, positive loss; yet substitutes of another kind can generally be found. But when wildlife is squandered it does not go elsewhere, like squandered money; it cannot possibly be replaced by any substitute, as some inorganic resources are: it is simply an absolute, dead loss, gone beyond even the hope of recall."
/2="The autobiographer has two qualifications of supreme importance in all literary work. He is writing about a topic in which he is keenly interested, and about a topic upon which he is the highest living authority. It may be reckoned, too, that an autobiography, alone of all books, may be more valuable in proportion to the amount of misrepresentation which it contains. We do not wonder when a man gives a false character to his neighbor, but it is always curious to see how a man contrives to present a false testimonial to himself. It is pleasant to be admitted behind the scenes and trace the growth of that singular phantom which is the manâs own shadow cast upon the colored and distorting mists of memory."
</item>
<item ac.test.type150>
/1="All the sound reasons ever given for conserving other natural resources apply to the conservation of wildlife, and with three-fold power. When a spendthrift squanders his capital it is lost to him and his heirs; yet it goes somewhere else. When a nation allows any one kind of natural resource to be squandered it must suffer a real, positive loss; yet substitutes of another kind can generally be found. But when wildlife is squandered it does not go elsewhere, like squandered money; it cannot possibly be replaced by any substitute, as some inorganic resources are: it is simply an absolute, dead loss, gone beyond even the hope of recall."
/2="The autobiographer has two qualifications of supreme importance in all literary work. He is writing about a topic in which he is keenly interested, and about a topic upon which he is the highest living authority. It may be reckoned, too, that an autobiography, alone of all books, may be more valuable in proportion to the amount of misrepresentation which it contains. We do not wonder when a man gives a false character to his neighbor, but it is always curious to see how a man contrives to present a false testimonial to himself. It is pleasant to be admitted behind the scenes and trace the growth of that singular phantom which is the manâs own shadow cast upon the colored and distorting mists of memory."
</item>
<trial 60secondtimer>
/stimulustimes=[0=ac.test.type.nexttrial; 1=60sec]
/validresponse=(28)
</trial>
<trial 150secondtimer>
/stimulustimes=[0=ac.test.type.nexttrial; 1=150sec]
/validresponse=(28)
</trial>
<clock 60sec>
/ mode = timer
/ txcolor = black
/ txbgcolor = white
/ timeout = 61000
/ format = "mm:ss"
</clock>
<clock 150sec>
/ mode = timer
/ txcolor = black
/ txbgcolor = white
/ timeout = 151000
/ format = "mm:ss"
</clock>
<text ac.test.type.nexttrial>
/items= ("Press [ENTER] to begin")
/position=(50%,40%)
</text>
<defaults>
/ fontstyle = ("Arial", 2.5%, false, false, false, false, 5, 0)
/ txcolor = black
/ txbgcolor = white
/ windowsize = (99%, 80%)
</defaults>