if maxi<2 then aegisub.cancel() end

if i==1 then

pressed,results=aegisub.dialog.display(
{
{x=0,y=0,width=1,height=1,class="label",label="Wipe duration (in):"},
{x=1,y=0,width=1,height=1,class="intedit",name="wdur",min=0,value=100,hint="Time from when the beginning of the text first appears to when the end first appears"},
{x=2,y=0,width=1,height=1,class="label",label="Wipe duration (out):"},
{x=3,y=0,width=1,height=1,class="intedit",name="wdur2",min=0,value=100,hint="Time from when the beginning of the text first appears to when the end first appears"},
{x=0,y=1,width=1,height=1,class="label",label="Fade duration (in):"},
{x=1,y=1,width=1,height=1,class="intedit",name="fdur",min=0,value=100,hint="Time from when a segment of text first appears to when it's fully opaque"},
{x=2,y=1,width=1,height=1,class="label",label="Fade duration (out):"},
{x=3,y=1,width=1,height=1,class="intedit",name="fdur2",min=0,value=100,hint="Time from when a segment of text first appears to when it's fully opaque"},
{x=0,y=2,width=2,height=1,class="checkbox",name="rev",value=false,label="Reverse (in)"},
{x=2,y=2,width=2,height=1,class="checkbox",name="rev2",value=false,label="Reverse (out)"}
},
{"OK","Cancel"})

if pressed=="Cancel" then aegisub.cancel() end

flags.off=results.wdur/(maxi-1)
flags.off2=results.wdur2/(maxi-1)
flags.fad=results.fdur
flags.rev=results.rev
flags.fad2=results.fdur2
flags.rev2=results.rev2

end

if results.rev then
line.start_time=math.floor(line.start_time+maxi*flags.off-i*flags.off)
else
line.start_time=math.floor(line.start_time+(i-1)*flags.off)
end

if results.rev2 then
line.end_time=math.floor(line.end_time-(i-1)*flags.off2)
else
line.end_time=math.floor(line.end_time-maxi*flags.off2+i*flags.off2)
end

if j==1 then
remove("fad")
tag=tag:gsub("{",("{\\fad(%d,%d)"):format(flags.fad,flags.fad2)):gsub("\\fad%(0,0%)","")
end