Stemming from a different project, I've made a MobMuPlat (MMP) NUMPAD "template" so that numbers may be entered directy (and more Precisely) into MMP instead of selected from siders, knobs, or other controls (which 
apparently pd can do by just clicking a number field, typing in the number, and pressing ENTER (Thanks, again, @LiamG)
FEATURES:
Integers and Decimals from 1e-8 to 999999;
m+,m-,rcl: for storing (m+), removing stored number (m-) and recalling numbers (rcl)
cl:clear (but no backspace)
HOW-TO:
To test: in the MMP editor open the "mmp_numpad_template.mmp" file and experiment. (note: it will not start entering decimals until after you click "." and Then the next number). It is associated to the "abs_mmp_numpad_test.pd" which has the template embedded as an abstraction in it. It also has a slider on the second page, to test routing the ENTERed number to different "locations".
To implement:
First embed "abs_mmp_numpad_template.pd" as an abstraction in your MMP's .pd file. It has one outlet: the current value after the NUMPAD's ENTer is clicked and will receive all control signals coming from the NUMPAD.
Next, with a text-editor, open the "numpad-codeblock.jsn" file (or copy it from the code block below);
VERY IMPORTANT!!!: make a backup copy of your own mmp file before doing this.
In the text-editor, open "as-text" your .mmp file (or to experiment, the "pasteJSNtest.mmp" file which I have provided);
Past the numpad_template.jsn codeblock (from the file or the codeblock below), in between the mmp 'gui' brackets, as shown here:
{"backgroundColor":[0.5019608,0.5019608,0.5019608,1.0],"pageCount":1,"port":54321,"isPageScrollShortEnd":false,"startPageIndex":0,"canvasType":"widePhone","gui":[],"isOrientationLandscape":false,"version":1.64}
Once you have pasted it in, save your file, and open it in the MMP Editor.
The control and associated labels will be on the first page. You can move them, resize, etc. as you wish. And no matter where you put it (given its precise field names the entered value will get sent to the "abs_mmp_numpad_template" abstraction.
Sounds like a lot of work. But once you get the hang of it. I think it's well worth the effort: you will be able to have exact control over Any mmp value.
numpad-codeblock.jsn
{"mode":1,"highlightColor":[1.0,0.0,0.0,1.0],"borderThickness":3,"address":"/numgrid/0","color":[1.0,1.0,1.0,1.0],"dim":[4,4],"class":"MMPGrid","cellPadding":2,"frame":[10.0,115.0,300.0,360.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"cl","textFont":"","class":"MMPLabel","frame":[175.0,405.0,50.0,45.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":".","textFont":"","class":"MMPLabel","frame":[35.0,400.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"ent","textFont":"","class":"MMPLabel","frame":[235.0,405.0,75.0,45.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"m-","textFont":"","class":"MMPLabel","frame":[245.0,225.0,60.0,45.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"m+","textFont":"","class":"MMPLabel","frame":[235.0,315.0,75.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"1","textFont":"","class":"MMPLabel","frame":[30.0,315.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"2","textFont":"","class":"MMPLabel","frame":[105.0,315.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"3","textFont":"","class":"MMPLabel","frame":[180.0,315.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"4","textFont":"","class":"MMPLabel","frame":[30.0,230.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"5","textFont":"","class":"MMPLabel","frame":[110.0,230.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"6","textFont":"","class":"MMPLabel","frame":[185.0,230.0,40.0,45.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"7","textFont":"","class":"MMPLabel","frame":[30.0,145.0,40.0,40.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"9","textFont":"","class":"MMPLabel","frame":[185.0,140.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myPanel","color":[0.6,0.6,0.6,1.0],"passTouches":false,"class":"MMPPanel","frame":[10.0,55.0,300.0,60.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/numlabel/0","textSize":42,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":":256 ","textFont":"","class":"MMPLabel","frame":[15.0,60.0,290.0,55.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"0","textFont":"","class":"MMPLabel","frame":[105.0,405.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"8","textFont":"","class":"MMPLabel","frame":[105.0,140.0,40.0,50.0]},{"highlightColor":[1.0,0.0,0.0,1.0],"address":"/myLabel","textSize":36,"color":[1.0,1.0,1.0,1.0],"androidFont":"Roboto-Regular","textFontFamily":"Default","text":"rc","textFont":"","class":"MMPLabel","frame":[250.0,135.0,50.0,50.0]}
Hope this may be of use to you.
Enjoy. And as a side comment: MMP is by far the fastest development environment I have ever worked in and is excellent as a ProtoTyper (tho admittedly my experience is limited). It works GREAT as an OSC-Controller, too. Daniel has done us all a great service by building it. Additionally kudos, to the PdDroidParty and libPD developers upon whose backbone it is built.
Many Happy Returns,
Scott