Simon

Outlier here - about 8 years or so ago I found that wearing a kilt fixed some rather worrying degenerative nerve issues I was having (due to L4-L5 scoliosis).  It had gotten to the point that I couldn't stand in one place for more than 15 minutes without either severe sciatic pain and/or femoral nerve pain (left leg would go "dead" from the hip down).  Put a kilt on for the first time for St. Pat's one year and realized after about 6 hours of standing at the bar that I had been standing at the bar for 6 hours and didn't have any pain. Other than testing out the somewhat bizarre theory (and always finding that jeans, khakis, dress pants, etc. would cause the issues to come back), I haven't been back in pants since.  Don't even own any these days.
 
Plus side, is that no one knows what to make of a kilt when it comes to dress codes -- can be casual or formal with the simple addition of a jacket.

And some vintage work boots are the norm for footwear.

Outlier here - about 8 years or so ago I found that wearing a kilt fixed some rather worrying degenerative nerve issues I was having (due to L4-L5 scoliosis).  It had gotten to the point that I couldn't stand in one place for more than 15 minutes without either severe sciatic pain and/or femoral nerve pain (left leg would go "dead" from the hip down).  Put a kilt on for the first time for St. Pat's one year and realized after about 6 hours of standing at the bar that I had been standing at the bar for 6 hours and didn't have any pain. Other than testing out the somewhat bizarre theory (and always finding that jeans, khakis, dress pants, etc. would cause the issues to come back), I haven't been back in pants since.  Don't even own any these days.
 
Plus side, is that no one knows what to make of a kilt when it comes to dress codes -- can be casual or formal with the simple addition of a jacket.

And some vintage work boots are the norm for footwear.

Personally I can't see past Hero System mobile by our very own @sentry0.

I believe it was first defined in UMA, but the description gives you everything you need on it:  STR +2D6 Strike, must follow Block.

If not UMA, then HSMA.  The maneuvers in HD are a direct port from HSMA pages 6 and 7.

You'd likely have an easier time enabling any of the notes tabs for that (under campaign rules).

Growth under 6th Edition is no longer a level-based Power (like Density Increase).  Also note that (as always) Growth is not intended for characters that are always large -- it's meant for characters that can change their size...so the bonuses are not fixed (and are not always present).

Probably just a matter of an equally old appPrefs.xml placing modal dialogs off of the current screen.  Delete appPrefs.xml before starting HD and see if that fixes things. 

Adding "Only with PRE Attacks" is up to you/the GM.  I've seen it in the past at up to a -1 Limitation, but that's more about how prevalent PRE attacks are going to be in the campaign (as in: how often not having +30 PRE for defense against attacks is going to matter) and how limiting you see it in light of the existing Limitations on the ability.
 
As for the cost, it sounds like you've checked off "add Modifiers to base Characteristic" -- that means that _all_ of the character's PRE has Extra Time and Costs END to use (not just the +30).  Uncheck that box (so that the Modifiers apply only to the +30 PRE) and it should have a cost of 17 points.

Let's start with the basics:  under 6E, Growth is not a level-based Power (i.e. it's not purchased as +X for every Y points) -- it has discrete increments defined.  Density Increase, on the other hand, remains a level-based Power.  That is the reason for the difference in how they act relative to automatically adding to Characteristics.
 
That said, what you're doing is incorrect and not in accordance with the rules of the system.  Density Increase is meant for characters that can change their density.  Characters that are always dense simply purchase the relevant bonuses (and take the relevant Complications).  Similarly, Growth is meant for characters that can change their size -- characters that are just big (always) purchase the relevant bonuses and take the relevant Complications to reflect their size.

Offhand, sounds like you're running afoul of Windows' UAC. Do you have HD beneath "C:\Program Files" or some other directory that you do not have full access to?

Also bear in mind that without some pretty serious constraints wrapped around the ability, it's a game-killer.  As others stated, at a minimum you need to define what abilities the character can mimic (and how) and to what level. You're not going to have a starting character able to take on the abilities of cosmic-level villain because they managed to shake their hand. Even without power level concerns, as defined in the initial post the character could simply touch someone and suddenly know everything about their abilities -- quite the Secret ID killer, there....and the GM can forget about having any secrets to their NPCs or villains.

Look carefully at the tags that aren't working: you have three “-” characters at the end of /IF_CAMPAIGN_USE and in the opening and closing tags of IF_APPEARANCE

All or Nothing as-written on 6E1 308 applies only to Transform. A more generalized form of it can be found as an option under Attack Versus Alternate Defense, which should be used for other (non-Cumulative) Attack Powers.

[Considers taking up masochism. Decides against it.]

There are a number of ways to get custom-designed STL files, from working directly with a designer (multiple Patreons that support this) to sites like Desktop Hero (https://desktophero3d.com).
 
The main issue that I see is that most FDM printers are going to lack the level of detail/quality that you're going to need at that small of a scale -- the end product is simply not going to look like what you want, leaving you with resin printers as your best option.  This limits the potential market for miniature designs for the HERO System DRAMATICALLY...for a product that you would not be able to market for more than a few dollars.

Simple: 

5 END for 1 Point is how the rules define the cost and how it's implemented in HD.  But you don't have to buy END in increments of 5, so if you purchase +1 END, the cost is 1/5 of a Point....which does not round to 0 -- nothing is free.  So +1 END costs 1/5 of a Point, which rounds to 1 Point.  Similar for +2 END (2/5 of a Point, rounding to 1 Point)....and +3-5 END.

Apart from general rounding rules in HERO System, abilities like END and STUN have specific considerations regarding nothing for free, so +1-5 END = 1 Point, +6-10 END = 2 Points, and so on. All in accordance with the rules of the system (and something of a PITA to code in).

I've been giving this thread a pretty loose rein for a while...that appears to be something I need to change, unless folks start REMEMBERING THE RULES.

I don't care what you believe, what you think, or what your opinions are.  This is not the site for that.

Simple: 

5 END for 1 Point is how the rules define the cost and how it's implemented in HD.  But you don't have to buy END in increments of 5, so if you purchase +1 END, the cost is 1/5 of a Point....which does not round to 0 -- nothing is free.  So +1 END costs 1/5 of a Point, which rounds to 1 Point.  Similar for +2 END (2/5 of a Point, rounding to 1 Point)....and +3-5 END.

Apart from general rounding rules in HERO System, abilities like END and STUN have specific considerations regarding nothing for free, so +1-5 END = 1 Point, +6-10 END = 2 Points, and so on. All in accordance with the rules of the system (and something of a PITA to code in).