Currently (unless I am mistaken) one must hold down the left mouse button to perform actions when interacting with test subjects. Releasing the button immediately cancels the action.

I propose an option to allow a click to begin the action with another click to cancel the action so that left click (or the assigned button) must not be continually held down lest the action be cancelled.

This suggestion's approval or dismissal is meant to be about simply the idea of interaction without constant user input. The following examples are just chatter on the subject that goes much further, but all would require the ability to continue an action without continuous input.

Perhaps going further holding down the button (or another input method) could allow recording of movements to be repeated until cancelled. If various parts could act independently this would also allow multiple actions if appropriate animations existed, such as fingering an anus while performing oral interaction or other combinations with reasonably feasible animation.

This topic is a rather advanced idea on the subject related to toys/machines, but I am also talking about player character actions:

http://fek.userecho.com/topics/256-programmable-machinestoys/

Taken perhaps too ambitiously such a system would allow quite a bit of customized automation if a gambit-like system were possible with the player character as well as machines/toys. At its most simple though, this suggestion is just to offer the option to not require holding down a button at all times.

If you grow your persons balls/breasts/udder so much (and item that lets you increase production of cum/milk) they will break the chair. but will still not be able to move there hands or feet since they are strapped so you have hyper goodness :D they need some milking and some fucking in order to re leave that presser :D they would then be supper sensitive :D (maybe sell the contents to make money :D) also this would be same if hyper pregnant with live or eggs they look ready to burst... but they wont they just look like it and they grow if not birthed :D

This would be nice

It's the only thing I'm missing from my sona, and I know a lot of other people have them on their drakes. Would look similar to this image by Morca:

I really would like to see this 4 devices in game they don't need any special utility but for example ring gag could later in development help with possible oral activity

using vaginal and anal speculum could be added visible contractions during orgasm or pain

and x-ray could be in form of glasses or tablet like device that allows you to see whats happening inside.

What about force the subjects to do some physical exercise like tied up on a treadmill leashed on the neck or balls or work with weights with butt-plug "punishments"

Source: Vindictus

Source: Guild Wars 2

I'm pretty sure of copyrights, those images are just examples.

Use current in-game client characters that generate as test subjects or some future variation such as appointments made with Dr. PlayerCharacter to have various modifications done to their body. Might work best in an active feedback situation in a testing room, or perhaps a check list (objectives?) to meet their demands prior to credits given. Maybe give bonus credits for exceeding expectations but not going beyond client limits.

There should at some point DEFINITELY be an easier way to cum on your subjects, by grasping yourself during orgasm perhaps.