Just asking if it is possible to do a single note handshape for a series of notes (in which if combined will turn to a powerchord). It's like an arpeggio but with white highway sidelines instead of blue/purple, usually used in bass arrangement in some official songs:

 

http://i.imgur.com/lCKEWZR.jpg

 

Tried editing the xml file but no luck. No handshape appears on normal notes, and black notes (Crazy) gives off purple sidelines, same as arpeggio. Tech note also didnt work (tried using ghost & ignore).

EOF has no way to author that at this time, but it might in the future. For now, the closest you can get is an arpeggio, which isn't really a bad idea in the given example because it's only alternating between two notes. To get what you're asking, you'll have to edit the XML by adding a "chord template" where all frets and strings are -1 (unused), and then define a handshape that starts and ends during the portion of the chart you want to display this way.

Thanks for the head-ups, finally got it working. I'll put it here for reference.

 

Authored notes:

<note time="59.170" linkNext="0" accent="0" bend="0" fret="5" hammerOn="0" harmonic="0" hopo="0" ignore="0"   leftHand="1" mute="0" palmMute="0" pluck="-1" pullOff="0" slap="-1" slideTo="-1" string="1" sustain="0.000" tremolo="0" harmonicPinch="0" pickDirection="0" rightHand="-1" slideUnpitchTo="-1" tap="0" vibrato="0"/><note time="59.354" linkNext="0" accent="0" bend="0" fret="7" hammerOn="0" harmonic="0" hopo="0" ignore="0" leftHand="3" mute="0" palmMute="0" pluck="-1" pullOff="0" slap="-1" slideTo="-1" string="3" sustain="0.000" tremolo="0" harmonicPinch="0" pickDirection="0" rightHand="-1" slideUnpitchTo="-1" tap="0" vibrato="0"/><note time="59.537" linkNext="0" accent="0" bend="0" fret="7" hammerOn="0" harmonic="0" hopo="0" ignore="0" leftHand="1" mute="0" palmMute="0" pluck="-1" pullOff="0" slap="-1" slideTo="-1" string="1" sustain="0.000" tremolo="0" harmonicPinch="0" pickDirection="0" rightHand="-1" slideUnpitchTo="-1" tap="0" vibrato="0"/><note time="59.727" linkNext="0" accent="0" bend="0" fret="9" hammerOn="0" harmonic="0" hopo="0" ignore="0" leftHand="3" mute="0" palmMute="0" pluck="-1" pullOff="0" slap="-1" slideTo="-1" string="3" sustain="0.000" tremolo="0" harmonicPinch="0" pickDirection="0" rightHand="-1" slideUnpitchTo="-1" tap="0" vibrato="0"/>       

Handshape:

<handShape chordId="2" endTime="59.354" startTime="56.569"/><handShape chordId="3" endTime="62.355" startTime="59.537"/>

chordTemplates:

<chordTemplate displayName="" chordName="" fret0="-1" fret1="5" fret2="-1" fret3="7" fret4="-1"     fret5="-1" finger0="-1" finger1="1" finger2="-1" finger3="3" finger4="-1" finger5="-1" /><chordTemplate displayName="" chordName="" fret0="-1" fret1="7" fret2="-1" fret3="9" fret4="-1" fret5="-1" finger0="-1" finger1="1" finger2="-1" finger3="3" finger4="-1" finger5="-1" />  

Result:

http://i.imgur.com/dC3tyOd.jpg